Having a great time seshing (drinking underage) with your friends or colleagues commonly used in Ireland
Boy:here pass me a can of druids bud
Other Boy: Here... Oh And MUP THE SESH
Cork slang , used when your having cold ones and its a banger,
"Dean kearney has 24 cans of tesco lager and he is on his way down! Mup the sesh!!
Cork slang, used when a gang of friends go and have a great night drinking alcohol
"Dean kearney has 24 cans of tesco lager, mup the sesh!!!