When your significant other gets up during a movie to take a whizz (as she has a walnut sized bladder) then comes backincessantly asking "what I miss"???
Verb: During the course of pooping your poop stops to urinate and then continue your bowel movement. The intermission of pissing during a shit session.
While pooping your anus tightens for release of urine. Once completion your anus relaxes and your poop continues.
I had shit so bad but I drank so much I had an Interpissen.
Analogous to the blagotubes and interwebs, the intervines are the information superhighway for plants. Theorized to exist as the communication vector in many evil-tentacle-plant movies. (such as The Ruins) Not to be confused with 'intervenes', damn it!