Nehrnt is a term used to express one's feeling of happiness, sometimes after tricking someone or making them laugh. It can also be used in place of psych. It's full potential is realized when typed in all caps and followed by at least 4 exclamation points. It's origins date back to the early to mid 1980's when a fat girl on a bus would laugh like that.

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy