Ntm is a 'slang' which means ' Not to much ', it is commonly used in texts. Mostly to defend you're loved ones. So basically saying stop talking on my ______ etc.
The most famous rap band in France. The singers Kool Shen and Joey Starr began in 1990 in the ghettos of North suburbs of Paris. The name comes from Nique Ta Mère literraly means Fuck Your Mother.
They are now separated