A person seen as obtaining or trying to obtain sexual contact with a female in a metaphorically "naggy" manner. The tendency to try so hard to attain snatch access could be mis-construed as rapey behaviour.
It didn't matter how many times i said no, he kept asking me to come back to his room for a 'night cap', he's definitely a bit of a twat nag
To engorge the vaginal opening of a woman with a large penis (or other large object) to the point where it can take no more. To pack as much meat in that pussy as possible.
Tommy Lee has quite the Twat Gagger in his pants. The Twat Gagger on that guy could kill a horse. I bet that 2 foot dildo is a good Twat Gagger. I’ll use my fist to Gag that Twat! This new girl I’m dating is going to be very surprised when she sees my Twat Gagger.
Jim: And let me tell you Larry, i buttered her twat toast all nightlong Larry: Damnit Jim, all i ever get these days is some pasty ass.
Jim: It was great.