To promote the growth of; incite or provoke.
He was also arrested because he fomented the fight.
by shago May 12, 2006
The moment of realization that you have FOMO
Becky: "You should have seen Craig do his kegstand on Friday night!"

Amanda: "OMG! I'm having such a foment right now!"
by ABDL January 15, 2022
A foment has several meanings:
1. FOMO of a moment that happened without you
2. A future moment

3. A fake moment

4. A forgotten moment that you tap into only while drunk
“Wow, you’re right, we did meet that time we were blacked out at the bar. What a foment that was.”
by Fo-turkey November 24, 2019
One has been fomenting when one hasn't had a blowjob from another man in a long time because one has been busy with other things.
Colin's roommate had been fomenting for too long and Jesus ties him up to the bed and gives him a blowjob. Colin calls for Banquo and he is embarassed that he had fomented for so long.
by Banquo9999 September 20, 2008