Best definition
a mix between white and mexican people(combination of wet back and cracker)

i hate wetcracks because they always put mayonaise in my burritos
wetcrack: define #2
An individual born to a wetback and a cracker. Not to be confused with shit in your crack, mudd butt, anal seepage, etc…..
Hey you know that wetcrack Juan. I heard he ate 14 burritos at a birthday party and then shart in his pants.