Grouch
Muffel stands for:
- Mouflon , see European mouflon
- Grouch (person) , a grumpy person
- Muffle , nasal mirror of some large mammals
- Muffel (ringtone figure ) , an animated rabbit figure
- Muffle , heat-resistant insert for laboratory furnaces, see muffle furnace
- an exercise in trampoline gymnastics , see trampoline gymnastics #terminology
People:
- Muffel von Eschenau , a Nuremberg patrician family
- Niklas III. Muffel (1409 / 1410–1469), Nuremberg patrician and author