DEEP DRILLING 

inserting your rod into a female opening as if u were drilling for oil...

after 9 months of deep drilling, u strike "baby" oil :-)

DEEP DRILLING by blthrskt December 28, 2005

Deep Vaginal Drilling 

When a guy sticks his penis very deep into a women’s vagina like he’s drilling a hole into the women’s vagina.

I will do some deep vaginal drilling to you, my love.

Deep Vaginal Drilling by Minecraft1238 October 25, 2018

Deep-sea drilling 

While engaged in violent oral sex, the act of deep throat fucking to the point of regurgitation.

That was some pretty rough deep-sea drilling last night!
I know, the cleanup is taking longer than BP!

Deep-sea drilling by Frank Li May 27, 2011