A booger that is trapped in oneâs nose, usually stuck to the wall of the nostril, which flaps back and forth like a hinged trap door when breathing. The trap door should be removed with caution; if snorted too vigorously when trying to loosen, it may suddenly release, resulting in being sucked down into the back of your throat, Which may induce nausea or vomiting.
Iâve had a trapdoor booger stuck in my nose all day, Itâs driving me crazy!