it means you've bled when shagging

When a female virgin first has vaginal intercourse, or some object is inserted into the vagina, causing the hymen to rupture, resulting in bleeding. The term "cherry" is used to refer to the red of the resulting blood. However, not all women are born with a hymen, and certain hard physical activities may cause the hymen to tear. Though no surgery can restore virginity (i.e. you can't 'un-have' sex) there is a procedure to restore the hymen to its original state.

When a guy makes u loose your virginety.

To have sex with a virgin, causing said virgin to lose their virginity. Can often cause an unusual amount of bitchiness in said ex-virgin.

to loose ones virginity

to get fucked or get finger/fisted soo hard ur pussy bleeds

when a guy wants to get a girl embarrased by telling you that he wants to fuck you