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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
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
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