2 letters:
up

3 letters:
pup, yup, sup, cup

5 letters:
go up, do up

6 letters:
put up, gas up, use up, dry up, set up, eat up, rev up, fix up, pin up, zip up, rip up, mug up, run up, dig up, pay up, pen up, lay up, ice up, mix up, add up, let up, sit up, fed up, lap up, get up, sum up, tie up, end up, gum up, buy up, mop up, act up, pop up, cut up, bob up, box up, dam up, fig up, fog up, hop up, hot up, kit up, log up, mat up, pal up, pep up, rig up, rub up, slipup, sop up, tee up, tot up

7 letters:
drag up, foul up, muck up, wake up, blow up, hold up, prop up, jazz up, pull up, lead up, fill up, pass up, stir up, rake up, tear up, wrap up, rise up, pile up, closeup, back up, curl up, tidy up, belt up, warm up, bone up, spit up, heat up, buck up, push up, mark up, ball up, pick up, high up, mock up, beat up, draw up, bang up, move up, hush up, come up, step up, perk up, show up, pony up, wall up, drum up, hole up, chin up, true up, chat up, whip up, give up, lock up, jack up, hard up, ease up, burn up, load up, gear up, tone up, beef up, puff up, work up, slip up, rack up, keep up, shut up, take up, wash up, pipe up, look up, crop up, bust up, gang up, kick up, cock up, grow up, sign up, turn up, line up, bear up, lift up, hike up, bump up, even up, play up, soup up, tune up, fire up, mess up, trip up, ring up, face up, roll up, size up, tart up, head up, wise up, make up, cook up, soak up, call up, firm up, snap up, open up, hook up, fold up, hang up, wind up, clam up, suck up, ante up, bomb up, book up, buoy up, chew up, chop up, chum up, clap up, clog up, coop up, cork up, cozy up, crap up, deck up, dish up, doll up, dope up, edge up, egg cup, elf cup, eye cup, felt up, fort up, grub up, haul up, heap up, heft up, hive up, hype up, kept up, lace up, land up, prim up, rout up, ruck up, sack up, save up, sell up, silt up, slow up, soar up, stay up, stop up, team up, tote up, used up, vamp up, well up, went up, wipe up

8 letters:
stand up, dress up, chalk up, shoot up, build up, dream up, crack up, clear up, think up, tying up, blown up, round up, knock up, cough up, start up, screw up, brush up, shake up, close up, write up, rough up, light up, scrub up, offer up, catch up, break up, fetch up, split up, patch up, stick up, snarl up, carve up, board up, block up, frame up, crank up, touch up, sober up, smash up, juice up, trump up, point up, stink up, clean up, cheer up, shape up, stack up, throw up, scale up, drive up, bound up, speed up, flare up, shack up, cover up, bring up, speak up, blaze up, boost up, botch up, brace up, brick up, brisk up, bunch up, chain up, chock up, choke up, churn up, climb up, clock up, cloud up, creep up, crock up, dice cup, divvy up, drink up, dummy up, earth up, eaten up, fancy up, flame up, fluff up, gussy up, heave up, hitch up, jolly up, liven up, louse up, mount up, muddy up, plump up, prick up, psych up, queue up, raise up, saved up, scoop up, serve up, shine up, shore up, sidle up, slack up, slice up, slick up, smell up, sneak up, spear up, spice up, sweep up, swell up, swoop up, taken up, tense up, trice up, trick up, using up, vomit up, wolf pup, wound up, yield up

9 letters:
death cup, butter up, pumped up, double up, square up, button up, bundle up, bubble up, higher up, string up, dixie cup, loosen up, bucked up, giving up, finish up, strike up, optic cup, spruce up, grace cup, bottle up, acorn cup, backed up, blood cup, bridle up, brown cup, charge up, choose up, cobble up, cotton up, couple up, curled up, doctor up, dolled up, dredge up, drying up, fairy cup, fatten up, gather up, ginger up, gobble up, heated up, hit it up, limber up, muster up, paper cup, perked up, polish up, pretty up, ruffle up, scrape up, snatch up, spirit up, sponge up, spring up, stored up, sweet cup, waking up

10 letters:
lighten up, conjure up, blowing up, measure up, freshen up, loving cup, live it up, stopped up, summing up, bolster up, bristle up, clutter up, coffee cup, digging up, divided up, fancied up, furbish up, golden cup, gussied up, scratch up, scrunch up, shoring up, shrivel up, soaking up, speeded up, spruced up, stirred up, swallow up, tighten up, wrapped up

11 letters:
stirrup cup, painted cup, whoop it up, bringing up, clouding up, coughing up, propping up, queen's cup, scarlet cup

12 letters:
drinking cup, mustache cup

13 letters:
measuring cup, champagne cup, drain the cup, moustache cup, straighten up

14 letters:
black felt cup

19 letters:
charred pancake cup