pop-up blockers

tighter underwear wore underneath looser fitting swimming shorts, to prevent n r b's
spoken: pop up blockers.

"That old dude forgot about his pop-up blockers..sick."
dude 1:"why do you wear tighties man?", dude 2:" dont be such a T-box, theyre just my pop-up blockers."

Pop blocker

The guy who knocks up your girl when you are trying to get her pregnant.

My girl and I are trying to have a baby but her lover is a pop blocker. Now she's having his baby! - Eric Jenson