Much like the term cock block for men; the Box Block is the reverb for a female. Defining the actions taken when one female steps in front of another female to void a sexual advance from a man.

The female version of "C-Block". This can occur 1 of 3 ways:
1)A male friend begins a conversation with you at the most inoportune time.
2)A female friend brings up a conversation topic that is typically spoken between women (i.e yeast infection, menstrual clot, etc.).
3)or another hoochie scoops in on the fella you have eye ballin all night.

When a girl blocks another girl from picking up a guy or from getting laid by a guy.

1.when something stops you from gettin with someone, not just for sex. someone stops your flirtin, makes you really pissed.
2. cry for help when a guy is trying hard to get a piece and you dont want him too, you tell your friend to box block.

female equiv of cock block