An unexpected, very rapid punch to the buttocks - typically for retribution - most often achieved while walking up a staircase. "Ninja butt-punch" is quickly, quietly spoken by the attacker as he makes his move, with "BUTT" heavily accented as the fist makes contact.
Exactly what it sounds like. A very hard punch to the buttocks. An excellent retort when you've been farted on. If done fast enough the sounds of the fart should speed up or change pitch.
bobthought he was being funny when he stuck his ass over my shoulder and farted he stopped laughing when I butt punched him.
When you're fucking and the dick slides all the way out of the pussy and on its way back in it misses and punches the tight butt hole causing pain to both parties.
Last night Ben butt punched me, it hurt so bad, we had to stop completely.
A punch that is delivered to the buttocks of one who has his/her bottom in a protruding position. This punch can only be achieved with a minimum of 3 people and requires a conventional method of execution.
Person 1: "Butt punch!"
Person 2: *Delivers the punch to the extended posterior of Person 3.*
Person 3: "AHHH SHIT!"
When a dude is fucking a dude in the ass you go to give him the reach around. Right before the point of no return you pull out and shove your free handed fist elbow deep into the anal cavity.
Phil: oh yeah thats good
Joel: oh yeah are you ready to take it like a man, here comes the Santa Fe Butt Punch
Phil: Bring it big daddy!!