by Pawll May 14, 2014

A fap sack is a homemade masturbation device that consists of two materials, those being a zip-lock sandwich baggie and lotion of the user's preference. Another requirement to use this device is that one must have a bed with a mattress and box springs. To use it, the user simply deposits a generous portion of his favorite lotion into the baggie, seals the baggie and spreads the lotion on the inside of it, and inserts the baggie between the box springs and mattress of his bed with the zip side visible. Lastly, the user then inserts his penis into the baggie and thrusts himself in and out of the baggie until climax.
Josh: "Dude, I just found a used fap sack in Brandon's bathroom that he forgot to throw away..."
Nathan: "Aw, sick!"
Nathan: "Aw, sick!"
by Hobo with a shotgun December 18, 2012

Like a train where you see the carriages one after another. A fap train is masturbating again and again and again.
by SexyPanda17 November 28, 2012

A sad fap is when you read a sad doujinshi and sit down to question why you're reading JoJo bizzare adventure doujinshi at 3am
Man I expected Joseph to get fucked my Caesar but now I'm crying with nut on my hands. This was a sad fap
by OH MY GOD!! August 16, 2019

a fap shirt is when you ejaculate inside a shirt and iron it then removing the hardened cum and sending it to your grandmother.
by Pebo the german hypocrite December 11, 2018

When ones hand is extremely flappy and/or numbed, which is to be used to pleasure ones self. Or also known as masturbating with a flappy hand.
Guy who's about to flappy fap: "Right, time to get the tissues and fap myself with my numb hand. I'm really feeling the tingles tonight."
by A Guy with a problem. March 10, 2014

Masturbating proudly after a huge accomplishment. Form and posture of this Fap should be similar to that of a man standing on a mountain top, one hand held victoriously overhead and the other slow rubbing below.
Billy finally quit his job today, afterwards witnesses saw him standing on the hood of his car doing a Victory Fap.
by HotDeuceUniversity September 2, 2016
