What does FIL stand for?


The acronym FIL stands for "father-in-law." When a person gets married, their spouse's father becomes their father-in-law. So, if someone asks you about your FIL, they're likely asking about your spouse's father.

Pop culture has taught men, especially, that they should be intimidated by their father-in-law. However, many men get along well with their FILs, with some even becoming bros.


Thankfully, I get along with my FIL pretty well
MBN, I think mine's insane

If your FIL gives you a sensible chuckle, he likely thinks you're alright

Related Slang


Updated October 21, 2020

FIL definition by

This page explains what the acronym "FIL" means. The definition, example, and related terms listed above have been written and compiled by the team.

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