to kill one's social life
Veronica is commiting social suicide by talking behind her friends backs.
2. To control the life you hope to have without ending the only life you have to live.
Someone who is embarrassing to be around, nerdy, or has other unappealing characteristics, which make others avoid him/her like wildfire; noun or adjective
Don't commit social suicide, by sleeping with her boyfriend, like Norma Arce did.
JAMIE: No what
MIKE: Lisa just asked Sammy's ex out
JAMIE: No way! She so commited social suicide!
MIKE: She's so done