Definitions by Coldones

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!!!