motherfuckingly
Proposed by a contributor, not yet supported by evidence.
Meaning · English
Extremely.
Register: slang, vulgar
Where it’s used:
Used
American English
Examples
And this meant that this assignment was going to be motherfuckingly difficult if not downright impossible — the make or break case of his own law enforcement career.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “motherfuckingly” mean?
Extremely.
Is “motherfuckingly” formal or informal?
motherfuckingly is generally slang, vulgar.