I.o.u. Edit Meaning

1. Casual, almost sad sex. Sometimes done out of pity. Occurs between friends, or co-workers. It will take some time and pity, but she wil..

1. Acronym for "Who What Where When Why How". This definition appears very rarely and is found in the following Acronym Finder c..

1. First seen in Super Mario Bros.Picking it up gives you an extra life. (duh!) Seen in about every Mario game. Mario got teh 1-up mushroo..