A sign of bromantic affection or a practical joke where a guy jumps on the back of an unsuspecting guy and grabs his family jewels so hard he defecates in his pants!
"Dude! I was down in the lobby and just saw a big guy just jump on this AZN dude's back and grab his nuts! The AZN was so freakin scared he shit his pants!"
"No way! He Unicorn Ambushed that slope!"