"Oh, forgot 2 mention ..."

• FYI cousin
• Texter's abbreviation meaning "Oh, also ..."
• "Incidentally," to a texter
• "Oh, and one more thing ..." in a text message
• Incidentally, in texting shorthand
• "I forgot 2 mention it, but ..."
• Texter's afterthought lead-in
• "And another thing ...," in texts
• Texter's segue

Wiktionary Word definitions in Wiktionary
abbr. (alternative spelling of BTW English)