when you place your flaccid to semi-erect penis in between a partners swampy butt cheeks. generally done in the morning before a shower or after a long hot day. named after 'Semotilus atromaculatus' or the creek chub, a species of minnow.
damn girl you smell swampy, im tryna work up a creek chub in here...
A man who scotch tapes dead Creek Chubs to his nether regions and runs into someone's house but naked before dowsing themselve in gasoline and lighting them self on fire .
My wife cheated on me with a snail I'm going commit Creek Chuby .