The meaning of the Acronym JMM is...

JMM is

• Jisim Mouthed Moron

More Meanings For JMM:

• Jisim Mouthed Moron
• James Madison Memorial
• Malmo Harbour Heliport, Malmo, Sweden

JMM is also in:

• Airport Codes
• Funnies
• Non-Profit Organizations