Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: i was skyping with my girlfriend when i heard a voice in the backround. she said it was her mum, but i couldn't see her. whilst they were talking, i decided to entertain myself by miming a blowjob at the camera (poking my tongue into my cheek and moving my hand at the same time). after a couple of seconds, my gf started to wave her hands to block the camera. her mum saw the screen.

TIFU by doing a blowjob gesture at my GFs mum