Top definition
When a man who is having anal sex with another man shoves his balls up the other man's asshole.
Terry was going hard with Frank. They did everything; Terry said that he even gave Frank a lumpy Jack.
by Punk Rodgers May 19, 2009
Get the mug
Get a A lumpy Jack mug for your cat Sarah.

Available Domains :D

  • alumpyjack.se
  • alumpyjack.org
  • alumpyjack.men
  • alumpyjack.net