1. (adj) The fear of not fitting in, being out of place.
2. (adj) The fear of not being able to get something to fit.
1. "I'm going to meet her parents tonight for the first time. They're from a completely different background, and I'm tetrified."
2. "I just spent $2400 on new furniture, and I'm tetrified I won't be able to get it up the stairs to the apartment."