A euphemism for a promiscuous female (i.e. a female with a high body count). The term derives from when 304 typed into a calculator, then turned upside down shows "hoe".
I'm dating this girl that I really like. However, I'm concerned with the booby/booty thirst traps she posts on social media. This behaviour leads me to believe I'm dating a 304.
A less vulgar way of saying hoe or skank. Type 304 in a calculator and it spells hoe if you look at it upside down. Ask a promiscuous girl "what is her body count?" and most of them time she'll give the answer 3 or 4, when in reality it is much higher.