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1.
When a man sticks his phallic organ into another person's ear and proceeds to ejaculate into it while lightly pumping.
"I felt so hot last night when fred mindwormed me!"
by Joe March 14, 2004
35 19
 
2.
the condition of having a song stuck in your head
Ugh! I have another mind worm!
by SaucyAddax August 11, 2007
14 10