blong

A slip-of-the-tongue for running the word's "be" and "long" together when you mean to say "don't be long", and it sounds instead like "don't blong", as seen in the movie The Whole Nine Yards

Janni Gogolack: Don't blong.

Oz: "Don't blong"?

Janni Gogolack: Annoyed Don't-BE-long!

by Maedhros The Tall November 04, 2011