when your 100% sure of something, the "american" way of saying it would be dead-ass. mams would be the European way of the american dead-ass.
An example of using it in a sentence would be, Mark: hey did you finish your test? Matt: mams bro of course I did.
by neozomb April 18, 2020
Get the mamsmug. A secret *or not so secret* code name for booze. commonly used by the youth of a certain place in Sussex.
by SolarPlex February 18, 2009
Get the Mammug. by panda puffin July 3, 2010
Get the mam-exammug. Waitress: What can I get for you today? (Bends over to listen).
As you look up and see the tunnel down her shirt, "I'll have the Rack of Mam please!
As you look up and see the tunnel down her shirt, "I'll have the Rack of Mam please!
by Stevil1 May 23, 2007
Get the Rack of Mammug. A phrase used by chavs meaning i had sex with ya mam or just trying to bring your mam into the conversation. Many chavs use this as they think everyone gets offended when you mention their mam. Its funny the first time but after that when people start saying it to every little thing it gets boring.
Chav: ya mam
me: what about her?
Chav: i shagged her last night
Me: i know you did, she said you were shit.
me: what about her?
Chav: i shagged her last night
Me: i know you did, she said you were shit.
by Craigeth December 9, 2006
Get the ya mammug. by Ju October 14, 2003
Get the your mammug. 