deadhead — A deadhead is someone who uses a free ticket to see a show, or for a plane or train trip.
bore — If someone or something bores you, you find them dull and uninteresting.
dork — Slang. a silly, out-of-touch person who tends to look odd or behave ridiculously around others; a social misfit: If you make me wear that, I’ll look like a total dork! Synonyms: jerk, schmo; nerd, geek.
boor — If you refer to someone as a boor, you think their behaviour and attitudes are rough, uneducated, and rude.
vulgarian — a vulgar person, especially one whose vulgarity is the more conspicuous because of wealth, prominence, or pretensions to good breeding.
flat tire — a pneumatic tire that has lost all or most of its air through leakage, puncture, or the like.
