"Oh, before I forget ...," in a text

• Incidentally, in text messages
• Start of a chat room afterthought
• Chatroom digression shorthand
• "You can tell a lot about someone ___ they use abbreviations": Peter Serafinowicz
• "Oh, I forgot to mention," in textspeak
• "One more thing," for short
• "Oh, before I forget," in a text
• "Incidentally," in texts
• Texter's "incidentally"

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
Internet abbreviation of by the way , in use by 1989.