hard on the Beaver 

to engage in vaginal intercourse in a agressive or rough way, especially in a male-superior position.

ETMY: After "Leave It To Beaver", an American TV comedy (1957 - 1963), in which the Cleaver family patriarch was often advised by his wife to "not be too hard on (our son) the Beaver".

Baby, when I get you in the sack tonight I'm gonna be a little hard on the beaver, if you know what I mean!

hard on the Beaver by larrydart December 26, 2011

you were a little hard on the beaver last night 

1) Quote from the the 1957 classic TV show "Leave it to Beaver"

2) When a male sexually pleases a female sometimes inducing pain, but always pleasure ;)

Bridget: "Wow, last night was bad."
Muhammad: "What do you mean? I had a great time!"
Bridget: "Yeah but you were a little hard on the beaver last night..."

you were a little hard on the beaver last night by Justin Manfred Weaver December 22, 2008