A cruel “prank” typically involving walking up to someone deemed ugly, unsuspecting, vulnerable, or otherwise an easy
target to be dishonestly told that one of the
instigator’s friends thinks they’re cute, and asking for their number.
This goes past pranking and leans more into bullying, even if the
instigator doesn’t think it does, because it causes emotional harm to the victim who had their number asked for. Sometimes it is recorded without the victim’s consent and/or posted to the internet.
There are infinite better ways to have a fun time and laugh than pulling it on someone. Not recommended.