When one lubes up their penis using cum from previous masturbation sessions, and ejaculating in the bag for later use. Side effects include a moldy penis.
When you go out with an ugly girl simply for sex. Or having sex with an ugly girl. Derived from when a person would do a girl but place a brown paper bag over her head because she is ugly. Like on Scary Movie 2
Begging it is used when:
1. someone is trying to suck up to someone for example, laughing at a joke that really isnt funny.
2. Someone asks for money to go and buy someone or asks for someones food
3. Someone who spends time around someone and really fancies them and is completely undignifies about it.
1. "Stop begging it off your mum."
2. "Stop begging it off him for cash you trampy whore, leave him alone and get your own you tramp."
3. "Allow begging it off him, you blatently fancy him"