Top definition
When a man passes his point-of-no return during sexual intercourse, and knows he's going to come.
"Slow down, John, you're going to come"
"Too late, Jane, I'm locking on"
by Nested Elevator November 19, 2016
Get the mug
Get a locking on mug for your brother-in-law Trump.

Available Domains :D

  • lockingon.com
  • lockingon.se
  • lockingon.ninja
  • lockingon.net
  • lockingon.men