1. A stupid, sexually careless girl or young woman, usually but not always blonde, and usually but not always big-titted. Not as promiscuous as a slut
. If a bimbo sleeps with a guy she just met, it's just because she's too stupid to realize she's cheating on her boyfriend.
2. A slutty or slutty-looking teenage girl.
1. Jennifer: Jessica, you're such a stupid slut!
Jessica: I am not a slut! I've only fucked 9 guys. I'm just a stupid bimbo!
2. Debbie is a 15 year old little blonde bimbo.