The vowel used to pronounce lone consadants like M (euhmmmmm), N (euhnnnnn), and L (euhlllll). The symbol for an "Euh" is a sideways lowercase e.

..is a mixture of ‘eh’ and ‘uh’.

Exclamation deriving from early roots of blackmetal music.

A word used when sevearly freaked out.
Add more h's depending on how scared you are.