Letup rhymes with:
setup, printup, setup, start-up, startup, backup, blowup, breakup, buildup, burnup, buttercup, canup, checkup, cleanup, close-up, coverup, crudup, eggcup, followup, greenup, grownup, hangup, holdup, hookup, jessup, lineup, linkup, lockup, makeup, markup, northup, pickup, pileup, printup, push-up, pushup, roundup, runup, setup, shakeup, speedup, stalcup, stallcup, standup, start-up, startup, teacup, tuneup, wakeup, walkup, warmup, windup, wisecup
Letup sounds like:
ladehoff, lataif, latvia, leadoff