It's when you crush up a whole bunch of Adderall and mix it with some silky smooth lotion and or Vaseline. Then apply it to your penis with strong strokes. Soon you will have the hardest, biggest raging boner ever possible making you able to bone what ever you want all night!
Barbra,"my boy lasted all night last night and his dick was much thicker than normal,"
Debra, " i bet he was jack whacking before"
Barbra, " ya i bet, he normally comes as soon as my mouth touches his dick."
Debra, " i bet he was jack whacking before"
Barbra, " ya i bet, he normally comes as soon as my mouth touches his dick."
by Jack Whacking Bro July 16, 2010
by Billbrasky7777 April 26, 2022
Smart-Ass 1: In case you're average Joe Blow walks in-
Smart-Ass 2: Paired with Jack Whack?
SA 1: What?
SA 2: You know, Joe Blow's friend. Jack Whack!
Smart-Ass 2: Paired with Jack Whack?
SA 1: What?
SA 2: You know, Joe Blow's friend. Jack Whack!
by DJ Wicky Wazz September 26, 2010