This can be used in many situations and is nearly foolproof.
By fat the most effective of the boner hiding techniques.
Bro 2: Did she see it?
Bro 1: Nah, I pulled off the swoop and tuck beautifully.
Bro 2: You are a fucking legend.
2. Douche: The swoop and tuck was really hard to pull off today since I was wearing skin tight jeans.
Bro: Shut up, you pantsy.