pecker peep 

when your pecker pokes through the slit in your boxers. usually happens in gym leading to ultimate embarassment

I was changing in the locker room when my pecker peeped and everyone saw my tiny willie

pecker peep by adsfajsfklajsd; June 3, 2009

Peeping Pecker 

When your dick comes out of the hole in your boxers inexplicably or when you can see the outline or bulge or your dick while wearing any kind of athletic shorts or sweatpants.

Hey dude you might want to stuff some toilet paper in your shorts cause you have a pretty bad Peeping Pecker.

Hey make sure you have a blanket tonight you don't want to have your parents see you with a Peeking Pecker in the morning.

Peeping Pecker by Freebirdzack January 12, 2015

Peckerpeeker 

Someone who makes up some lame excuse to be in a position to see a guy's package

Matt: What the hell are you doing in here? I'm in a glass-walled shower for fuck's sake!

Garrett: I had to brush my teeth!

Matt: You are such a peckerpeeker.

Peckerpeeker by Xmas Tree February 4, 2010