1 definition by StonyBear
The act of one giving themselves an over-the-pants handie, whereas they are either unable or too lazy to pull their pants down and masturbate correctly.
"This morning at work John was totally caught slacking-off under his desk."
"I always slack-off at dinner on the first date."
"I always slack-off at dinner on the first date."
by StonyBear November 10, 2011