When Keine Kamishirasawa from the Touhou games transforms on the full moon, goes crazy, and rapes you in the ass with her horns.

The term's association with said ass-raping comes from a butchered English-to-Japanese machine translation where "caved!!!!" became "screwed!!!!". Used by mostly Japanese-speaking Touhou fans, but a few English-speakers have also adopted the term.
I was caved!!!! by EX-Keine last week, and I STILL can't sit down!
by QueenieZ December 7, 2009
Get the caved!!!! mug.
v. To give up to all opposition, usually in an argument.
My boss threatened to fire me so I caved to his demands.
by Limbo January 7, 2006
Get the cave mug.
The psychological need of someone to close down the window shutters, dim the lights, turn off the phone, eat junk food, surf on the internet, watch TV, listen to music and use drugs, remaining in this condition for few hours, days or weeks, into her/his flat, denying to go out or to meet anybody, like she/he is hiding into her/his own cave. Strongly connected to Minor or Major Depression and Agoraphobia.
A: Man, I haven't seen Matthew for ages! Where has he been?
B: He hasn't been out of his house for a good two weeks now, isolated, eating pizzas and smoking weed...
A: Holy molly, he's caving again...

A: What's your plan for tonight, hommie?
B: Ain't going out, I'll be caving, I need to chill and avoid socializing
by Achilles M. Peklaris September 1, 2010
Get the Caving mug.
The ongoing act of giving in to something.
Person one: I know you're tempted but it's against your diet!

Person two: I'm caving, I want that chocolate cake!
by MedievalTempo April 19, 2018
Get the Caving mug.
The deepest trench of the arm pit, or under tit. In other words, when you place your arm in a certain position and flex your pectoral region, the cave will form.
Damn bro, that’s a nice cave. Definitely one of the deepest I’ve felt.
by I like dick 27 October 14, 2019
Get the Cave mug.
Caved on, caving on
To Cave on is commonly used meaning having a repulsive gesture and figure against being fingered(by a loved one or anyone else in particular).
He wanted to finger me but I caved on.
"Oh honey, I thought we talked about you caving on me before when I want to finger you."
They want to finger me but I always Cave on.
by mbmldn July 3, 2020
Get the Cave on mug.