matennaaier
What it means
Someone who betrays or cheats friends.
Literally “mate fucker”. Short editorial gloss; not an etymological claim.
Pronunciation Heard as “maa ten nai er”
English spellings approximate sounds and omit some contrasts. Use as retrieval hints, not authoritative pronunciation.
Used as
How it's used
Accuses disloyalty.
How strong is it? 3/5 · Vulgar
Accuses disloyalty. Ratings are contextual editorial estimates, not calibrated probabilities.