A common gesture performed by the majority of American males upon exiting a body of water whereby the male tugs at his crotch, introducing air into his swim suit, thus obscuring both the size and shape of his penis. Some members of other cultures believe it is a reflection of the general tendancy of US males to hide their true merit and rely on smoke and mirrors to create a misleading or inflated impression.
Concerned that his penis was smaller than the other men, the self-conscious American swimmer performed a Soggy Yankee Yank as he exited the pool.