(v.) The act of using covert operations to isolate someone from their friendship group(s) and turn their allies against them, usually as a form of punishment.
"I'm sorry!"
"You will be, when I social nuke you!"
"Do you remember that time you social nuked me? And I lost all my friends and it was awful?"
"I'm sorry! You were asking for it!"
(v.) Someone annoying you so much by being stupid that you, purposefully on non-purposefully, project your negative feelings onto their friends and isolate them as punishment.
"Shut up; don't make me social nuke you."
"It took me 3 months to recover from that social nuking."