ふざけんな
Romanisation fuzakenna
What it means
Angry protest: don't mess with me.
Literally “don't fool around”. Short editorial gloss; not an etymological claim.
Pronunciation Heard as “foo za ken na”
English spellings approximate sounds and omit some contrasts. Use as retrieval hints, not authoritative pronunciation.
Used as
How it's used
Contracted command.
How strong is it? 3/5 · Vulgar
Contracted command. Ratings are contextual editorial estimates, not calibrated probabilities.