Top Definition
Shorthand way of saying Less than Three, the expanded phrase of the popular internet emoticon "<3".

Casual expression of love and caring for a close friend, usually stated right when two are about to part ways.
1: Gunna go sleep now.
2: Good night, sweet dreams.
1: Lesson three!
2: Lesson three.
#lesson #three #<3 #less #than
by GodnLucy June 23, 2007
5 Words related to lesson three
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