Young Horowitz's definitions

Ghum

1)A word spoken when there is no other suitable word to utter. pronounced ('GGGUMM').

2)Another way of expressing..."I understand what you are saying".

Ghum has many variations...all with the same meaning....
Gub, Gumb, Gob, Glum

1)Steve broke the long moment of uncomfortable silence by stating, "Ghum".

2)After Cornelius instructed Shem on the Glibitronic Vestibule Reticulator, Shem nodded and stated, "Ghum"

by Young Horowitz April 4, 2008