Top definition
A wavecrack is a spin-off of plumber butt. It is when your butt crack shows after you get hit by a wave while visiting the beach.
Look at that guy's wavecrack. He should have shaved his ass before he came to the beach.
by Icyhot August 13, 2016
Get the mug
Get a wavecrack mug for your mother-in-law Nathalie.