Top Definition
1. An ingredient of a cough drop that a moron or retard would ingest when they are sick.

2. What a retarded koala eats in Australia.
Dave: "Hey, Chuck. Want a Halls Mentalyptus?"

Chuck (coughing): "Ahem, what?"

Dave: "Do you need a Halls Mentalyptus?"

Chuck (coughing again): "Ahem, what?"

Dave: "You retard, do you need a cough drop?"

Chuck (coughing yet again): "Ahem, what?"

Dave: "Yes you do! And a lobotomy while we are at it!"

Chuck (coughing for a fourth time): "Ahem, what?"
by connorsji November 09, 2009
5 Words related to mentalyptus

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