Slang meaning "for sure," but with a bit more flavor.
Fred: Yo, Becky's got some great milk bubbles. I'd love to nurse myself on those.
Me: Dude, forscuitto.
To have innocent, playful sex.
I'm hecka not trying to date you, but we could get squeaky once my babysitter falls asleep.
The keystone shit holds all the other poop in place. Once the keystone poop falls, the entire doo-doo infrastructure will eventually follow. The keystone is the densest shit and thus requires the most attention and concentration.
Sweating on the toilet, I put on the Led Zeppelin song "When the Levee Breaks" and waited for the keystone shit to drop.
When you can't determine whether something is hot or not, so you decide to put it to the masturbatory test.
I'm 50% certain this HomeGoods ad is heating me up, but I'm not sure. Time to investurbate.
Yahoo Answers couldn't tell me whether or not I'm sexually attracted to Ansel Adams' photographs, so I had to do some ground-level investurbation. I'm not. We're good.
When you had such a boner about the sentence you constructed but autocorrect fucked it all up at the last second.
Your top was untied and I thought how nice it would be to follow the sweat down your ass crack. Fuck...I meant to say spine, not ass crack. Autocorrectile dysfunction.