An initialism often used as a noun to describe someone who needs liquid courage to have any wheels, or to make move on any girl.
"He's obviously into Rebecca, we need to help his wheels, so let's order some shots for LC."
"Of course your date went sour, you should have ordered some wine, you're such an LC."
"Louis has some pretty awesome stories about having sex with girls but he's shit at talking to girls in real life, we all know he's a classic case of LC."