A "King Tuck" is when you take your boner, or a semi-hard dick, and tuck it into the waist band of your boxers, or pants, so that the head is peeking out of your pants.
"Yo wasn't that girl mad hot?"
"Yeah, she got me so hard tha i had to do King Tuck so she wouldn't see!"
"Yeah, she got me so hard tha i had to do King Tuck so she wouldn't see!"
by B0N3H3AD November 5, 2009