German
Etymology
From Rhenish dialect fiese Möpp, cp. Colognian fiese Möpp (“mean person”), from Möpp (“dog”). Compare fies.
Pronunciation
Noun
fieser Möpp m (no plural)
- (colloquial, regional, western Germany) mean person (sometimes jocular, but sometimes very serious)
Du bist 'n richtig fieser Möpp!- You're sooo mean!