FIL
What does FIL stand for?
Father-in-law
Example
"Thankfully, I get along with my FIL pretty well."
Related Slang
Usage
✓ General
Last Updated: August 7, 2013
FIL definition
This page explains what the acronym "FIL" means. The definition, example, and related terms listed above have been written and compiled by the Slangit team.
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Refers to the father of a person's spouse.