A "lala bop" is a slang term used on TikTok to describe a person, typically a tween or teen girl, who has had sex or engaged in sexual acts with multiple people. The term is often used in a negative context, with some users using it as a way to "slut shame" or expose others for their sexual behavior. Urban Dictionary defines a lala bop as "a male or female who f**s everybody" and "a he, cheater, somebody who talks to everyone". The term has sparked controversy due to its derogatory nature and the potential for cyberbullying.