A sexual position carried out buy inserting your testicles into a girls vagina then in turn jerking it on her belly button.

To achieve two simultaneous goals with a single action.

A less violent alternative to the phrase 'to kill two birds with one stone'.

Exactly the same definition as "killing two birds with one stone", but this term can be used as a more vulgar/edgy next level substitute to get the same point across, but also cause a sense of shock and awe also possible disgust towards first-time listeners of this phrase. This phrase may also invoke the mental image of a man grabbing his own penis and tilting it upward like a firearm and shooting out a kidney stone with such intense force that it could lethally penetrate two flying turds with bird wings killing them both at the same time.

Modern day “two birds one stone” but with a twist to spruce it up.

When two piss drunk best friends need to puke, but there's only one toilet, and so little time.

A horrid video back in 2013 where two girls( who were lesbian) first started kissing, but the video became disturbing when they peed and pooped into one cup and drank it and spit it back into each others mouth, hence the name "Two girls one cup"

When you put two in her scoobert and one in her doobert