the act of shoving an Olive Garden breadstick up one's ass and performing anal sex while using alfredo sauce as lube
"Jenny was horny during dinner so I gave her the dirty Olive Garden
the act of shoving Olive Garden salad up one's ass before eating spaghetti
"I was feeling kind of overheated last night so I gave myself a Dirty Olive Garden"
the act of drinking an entire bottle of wine before performing orally on an Olive Garden breadstick
"Dude last night I totally embarrassed myself by performing a dirty Olive Garden"