Short for "my littleblueberry cunt muffin". Can be used as a term of endearment or as a term of derogation.
Dofie-I love you Spanielle-I love you more
Dofie-I love you like a fat kid loves products with bleachedwheat and extensive egg yolks.
Spanielle-I love you like...........MLBCM
From the T.V show Get Smart, character Maxwell Smart used this line frequently in a self-deprecating way, indicating a miss at something that should have been obvious.