Mammoth Uncensored Word List:
160 words ending with p, 4 letters long

atap atop barp beep blip boep bump burp camp carp caup chap chip chop clap clip clop coop coup crap crop cusp damp deep dimp dorp doup dowp drap drip drop dump flap flip flop frap gamp gasp gaup gawp geep gimp glop golp goop gorp grip gulp gump gymp harp hasp heap help hemp hesp holp hoop hump jarp jasp jaup jeep jimp jump keep kelp kilp klap knap knop koap lamp leap leep lerp limp lisp loop lowp lump moop moup mump neap neep noop noup parp peep pimp plap plop poep pomp poop prep prop pulp pump quep quip quop ramp rasp reap repp ripp risp romp rump rurp salp scup seep ship shop skip slap slip slop snap snip soap soop soup sowp stap step stop sump swap swop tamp tarp trap trip tryp tump tymp typp vamp warp wasp weep whap whip whop whup wimp wisp wrap yapp yaup yawp yelp yomp yoop yorp yump