A mug is a person who is friends with your girlfriend who always cock blocks. she either is always talking to her when you want to or always tries to get invited to things with ur girlfriend.
Ben: June is being such a mug rn.
Dan: I know why does she want to go to the mall with us so bad.
Ben: Like does she know it’s supposed to be a double date.
Dan: IDK but I HOPE JUNE GETS HIT BY A CAR.
A mug is what the Urban Dictionary is advertising for EVERY FREAKIN' WORD.
GOD JUST BUY A MUG FOR YOUR FRIEND LISSA ALREADY JESUS.
you: on urban dictionary
me: makes something
urban dictionary: PLZ PLZ PLZ BUY A FRICKING MUG FOR YOUR DOG JAMES
The god damn cursed mug that urban DICKtionary wants you to buy, often saying
Buy a mug for your mother in law joe Biden
A mug is girl gamer that doesn't speak English and keeps repeatedly asking you about English grammar and/or definitions of words.
Charlene, you should stop acting like a mug, I'm not your English teacher!!!