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The L Bomb is the action (usually in teen relationships) of saying 'I love you' to someone you've been dating or know well and like a lot, dropping the l bomb is a massive deal, mostly for guys as a lot of teenage girls are assholes and when this occurs are prone to saying things like: 'aww, thanks' or 'you're so sweet' and sometimes even 'you know, I think we should just be friends'
Guy: I love you.
Girl: Aww, that's soo sweet.

Guy's Friend: So did you drop the l bomb?
Guy: Yeah, but she totally friendzoned me.
by awesomerainbowboo February 17, 2014
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