The act of slamming ones penis with large (preferably blunt) object until numb then proceeding to fornicate. Also known as 'Smash and Bang' or 'The Numb Missile'
Fancy a Slamadan? Slamadanning is my favourite? Fuck Ramadan it's all about Slamadan! I Slamadanned her all night!
by 1234567paper February 24, 2011
Get the slamadanmug.