An utterance to be heard when one experiences a situation that is the epitome of hairy horrid. Should one ever find oneself in such a situation, one may be said to have been visited by the Bears Grimmington.
The collective noun varies between a Smack of Grimmington Bears and a Creep of Grimmington Bears, dependent upon the suddenness of the horrid occuring.
Example 1;
Person 1: "You seen what time it is???"
Person 2: "Yea its like 4AM, we've been gaming for hours"
Person 1: "Oh Grimmington Bears"
Person 2: "Lolwut"
Example 2;
Person 1: "Did you just see me stack that 360 just now?"
Person 2: "Yea, looked like you were visited by a smack of Grimmington Bears"
Example 3;
Person 1: "Dude, I had such a good wet dream about your sister last night."
Person 2: "That's just sick, you really need to see a specialist"
Person 1: "Yea, when I woke up though, I whole creap of Grimmington Bears were huddled around the foot of my bed"
When a girl's vagina is so incredibly tight that it is visible during sex. Her pussy lips stretch around the penis. The lips visibly get pushed in with each thrust and are pulled out when a cock is sliding out. Look it up on PornHub, it's a thing.
Guy 1: Dude, Melissa is so short and petite. I bet her pussy is so tight it grips.
Guy 2: I fucked her a while ago. My cock got a good pussy gripping. But not after I was done.
When you skip a tutorial in a video game, and get stuck or lost in something the tutorial taught. A reference to Arin (Egoraptor) of the youtube channel Game Grumps, who would always skip tutorials.
"Bro, you'regrumping it! You shouldn't have skipped the tutorial."
"Ah, yeah, I grumped it."