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3.
A measure inversely proportional to the amount of alcoholic beverage left in a glass. Hence, a full glass will have no Platitude, and yet an empty one will be full of Platitude.
Mark said, "I need another drink, this one's full of Platitude."
by Ed May 06, 2005
 
1.
Platypus with attitude
The best way to keep your kids away from sex is to inform them of everything there is, instead of giving them platitude.
by Branjamin Franklin July 17, 2009
 
2.
A platypus's attitude, in a negative way.
"Man when I went to the zoo I was given some serious platitude!"
by ebkf October 06, 2007