Foul mood can best be described as a mood in which one no longer feels happy or content.
Foul moodedness can be associated with being grumpy, being an asshole, or just flat out being a cunt to others.
One who is in a foul mood will not want to deal with stupid people, talk to anyone, or may feel the need to curse anyone or anything out.
I was working and having such a great day today. Then a customer told me I was stupid and ruined it.
I'm in such a foul mood right now.
by JenJentastic September 20, 2013
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