As a noun fack
is one of the four stomachs of a ruminating animal; rumen; paunch.
As a verb dack is
(australia|informal) to pull down someone's trousers as a practical joke.
fack
English
Alternative forms
* (l) (obsolete)
Noun
(
en noun)
One of the four stomachs of a ruminating animal; rumen; paunch.
----
dack
English
Verb
(
en verb)
(Australia, informal) To pull down someone's trousers as a practical joke.