Reading Mein Kampf in a crowded form of public transit, such as a metro or plane
He got kicked off the plane for Kampfing
When a dude uses a "rowing machine" while watching porn or otherwise "horny", causing him to row with 3 legs.
Three-Leg Rowing really helps motivate me to exercise.
Someone who obsesses over STEM and related fields, for better or for worse.
Harry: Humanity classes are worthless these days, at least I can make a living off of being an engineer
Ron: You sound like a STEMbug, Harry.