The sensation experienced when one sits down after a long day and experiences an erection due to how amazing sitting down feels. This may also be referred to as "chairousal" for females.
Girl: "Do you have a boner right now??"
Guy: "Well I haven't sat down all day and I'm exhausted! I've got a chairection because this couch is so comfortable!"
The feeling of arousal from both sexual and culinary-inspired stimuli, such as high definition food pornography, superb knife skills, or a whimsical char-cooter-rie board. Similar to getting “food wood”.