ROTFSTCLMAAOBPO: Rolling on the Floor Scaring the Cat Laughing My Ass and Other Body Parts Off

What does ROTFSTCLMAAOBPO mean? The above is one of ROTFSTCLMAAOBPO meanings. It may have other definitions. Please refer to the end of this passage.

Definition in English: Rolling on the Floor Scaring the Cat Laughing My Ass and Other Body Parts Off