Top definition
Having steaming hot sex with an extremely large girl just so your mates can have a laugh. It soon becomes a fetish as whale wacking is some of the best sex you will ever experience.
Whale Wacking: Having sex with extremely large girls just to make your mates have a good laugh.
by funny_guy23 June 02, 2014
Get the mug
Get a whale wacking mug for your fish Beatrix.