to fuck mountains 

v., Fucking mountains; to have sex while being under the influence of MDMA (ecstasy) and/or cocaine.

Francis: HOOOLLLYYY SHHHHIIIIT, last night I was at that rave and I fucked this girl. It felt like moutains. It felt like mountains!!

Tyna: Dude, you fucked mountains?

Casie: I was there too... I wanted to fuck mountains..

Tyna: Dude..

to fuck mountains by impaired April 16, 2009