The act of tapping boners, similar to a fist pound. Usually occurs after something cool happens. This gesture is in no wayhomosexual in nature, and is a perfectly reasonable way for two men to applaud one another.
It is usually performed without any other touching, only the erect penises bounce off one another under clothing.
Not acceptable in the nude.
1)
Travis: "BANG"
Dan: Sweet head-shot
(Dan Stands up to give offer boner tap, only happens if Travis has a boner, if Travis doesn't the gesture ends in extreme awkwardness)
2)
Dan: I have a boner
Travis: Sweet me too
(Bonner tap happens)
The slightly sickening feeling that comes shortly after being hit or kicked in the balls. At first the blow may not seem too bad but then you feel the effects in the pit of your stomach.
After-tap can occur up to 1 minute after the initial sack tap or bell tap.
"Ah man I thought the worst was over but now comes the after-tap!"
or, following an attempted sack tap
"Aha, you didn't get me that badly... oh shit wait, here's the after-tap"