The act of men (mandem) performing a cheeky bum bum from behind (in tandem).
Howard and Ross love to go mandem in tandem while cottaging.
The chief mandem is appointed by fellow mandems in a democratic process. The process involves a series of rap battles between the mandems which is followed by a vote of confidence to determine the winner and new chief mandem.
Stormzy: he just spat bare fire in that battle, I vote for him to become chief mandem
Skepta: yeah that man spits some mean bars I vote for him
Devilman: I'm too unpredictable so man don't want to vote
JME: by the power bestowed upon me by the gods of grime, I pronounce you mandem
A broke boy who steals a blue science fair board when there are free ones
Which Broke Mandem scum took my board-Eok
To take anyone's mind off a bad situation with a cars bad fuel economy
Anton:
She's left me after 15 years
Jack:
Don't worry, check out mandems MPG.
Anton:
Fuuuuuck, I thought my problems were bad.
An anagram of meds name, an incarnation as a mad max rebellious nightmare horde at night, it's for mental health patients too deny involvement with
"I can't sleep, mandem are patrolling, I need my meds"