When a male has an erection, usally in the morining when waking, he takes his penis and folds it back, tucking it up so the boxers elastic waistband keeps it tucked up tightly against his stomach. Thus keeping the erection from being seen.
by David MacEwan April 26, 2004
The tuck and fold occurs when a guy takes his cock and balls and puts them under and between his legs, giving the illusion of just pubic hair as if he were a woman.
by Andee Henrotin September 24, 2007