a group of boys as a gang or as a slang for gang
take one for the mandem
Mandem - A gang who kidnaps kids
e.g. "yo lil timmy you should be scared of the mandems"
just say it it separately, like 'man - dem' and then you'll basically understand.
Junior: ayo look its mandem innih
Tom the white man: what?
A group of boys who enjoy daily meetups to partake in sexual activities, used in UK slang regularly.
Are we meeting with mandem tonight? I bought a condom!