muff1
n.
- a short tube made of fur or other warm material into which the hands are placed for warmth.
- vulgar slang a woman's genitals.
Etymology
C16: from Du. mof, MDu. muffel, from med. L. muff(u)la, of unknown ultimate origin.
muff2
v.
handle clumsily; bungle.
n.
a mistake or failure, especially a failure to catch a ball cleanly.
Etymology
C19: of unknown origin.