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2.
An acronym for "i love you more". Often used in playful ways by couples.
Mike: ILUm

Dina: I know! You love me so much more.
by Mserrao26 November 27, 2007
 
1.
The shortened version of the term "I love you more", used often by couples as an attempt to prove who's affection is stronger.
Dina: ILUM

Mike: I know it's true.
by SoraStar October 05, 2007
 
3.
Acronym for "i love you more". Often used in cute little fights between couples. And sometimes even turned into daily games/competitions.
Linnea: i love you :):)
Adam: ilum
Linnea: nnno ilUm
Adam: yeah...guess yr right babe
by ;)gotya May 01, 2009