1 definition by 240490

Top Definition
A pair of trousers (usually an old pair of jogging bottoms with an elastic waistband) in which a male can comfortably masturbate whilst wearing, thus creating warmth on a cold night without the need for a duvet or blanket.

Called fap slacks across the Atlantic.
"I see mikes got his wank slacks on, guess we know what he'll be doing later!"
#slacks #pants #trousers #wank #fap #masturbate #sex #warmth
by 240490 September 21, 2012
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×