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
by Jam Warm October 6, 2016
Get the twat nagmug.