Uncommonly used internet abbreviation of the words 'Fuck Off My Lawn', FOML has been used by various people, often in a string of related abbreviations such as:
FOMM
BBQ
STFU GTFO
A feeling you get when you get publicly baptized with smart water.
1. I was playing hopscotch and all of a sudden a stranger in a pink suit gave me a fomley.
2. When I play Destiny online my annoying little brother gives me a really embarrassing fomley.