Women were pissed/jealous that men are considered a pimp, a player, and "the man" when he sleeps with a lot of women and get a lot of pussy. So women created this phrase out of anger. What women don't understand is that why this double-standard tips in our favor (men), is because men have to always do all the approaching and it takes more skill/talent for a man to get pussy, than it does for a woman to get dick. That's why we get props for getting pussy, and women get ridiculed for opening her legs 7 days a week. HAHA!
Joe: I slept with 5 different hot chicks over the past 2 weeks! I fuckin' rule!
Susan: You're such a man slut. I hate you.
To "bag," or "bagging". To crack jokes by insulting someone or their mother. I believe this is West Coast oriented, as I grew up in Los Angeles hearing this term, but in the military I met people from other regions of the nation who never heard this. But people from California knew what "bagging" meant. Most called it "jone-ing". See dozens, dirty dozens, jone.
Oh, you wanna bag? Yo momma so fat, she's on both sides of the family!