I beat up all on her beaver
Now she wanna feed the meter!

from Tech N9ne (Ft. Snow Tha Product, Twisted Insane & Wrekonize) – So Dope (They Wanna) Lyrics on Rap Genius

Meaning

Beaver is here used as a metaphor for vagina, so he is saying he banged her until she ejaculated, and then she wanted to give him a blowjob.

Also, to “feed the meter” would mean you want to stay somewhere longer, as in putting change into a parking meter, so even though Wrek just fucked the shit out of her, she wants more.

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