When you do Maths for a living but you're fresh with memes. Usually likes to plug his/her books, and likes to use clickbait titles and loud beeping sounds.
The extremely painful defecation that occurs in some people after a large consumption of spicy foods.
Jonathonate several habenero peppers and some ghost peppers. A few hours later he was howling in pain as the liquefied fireshits squirted out of his body.