Top definition
You are gay and a defect. You (as a sperm cell) swam back inside your dad's nuts while he was nutting and stayed there until you were forced to go when he ejaculated too hard.
He is a backwardswimmer so let's leave him alone.
by NotABackwardSwimmer November 15, 2019
Get the mug
Get a Backwardswimmer mug for your fish Rihanna.