Similar to CD9 or 9, which refers to "parent in room" W9 and H9 are "considered essential for husbands and wives conducting extra marital affairs."
jargon|Online jargon]], also known as text message
shorthand, used in texting, online [[chat or
chatting|chat]], instant messaging, email,
blogs, and newsgroup postings,
these types of abbreviations are also referred to as [[chat
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