As a noun fack
is one of the four stomachs of a ruminating animal; rumen; paunch.
As a verb nack is
(computing) to acknowledge negatively; to send a nak signal to.
fack
English
Alternative forms
* (l) (obsolete)
Noun
(
en noun)
One of the four stomachs of a ruminating animal; rumen; paunch.
----
nack
English
Verb
(
en verb)
(computing) To acknowledge negatively; to send a NAK signal to.