ICYMI
adverb
- in case you missed it
Wiktionary
adv
- Initialism of in case you missed it.
“Billy Joel on the Onion (ICYMI) The other day when I was bored I browsed the archive of The Onion and had another chuckle at this dandy.”
“ICYMI: What guys REALLY think on Shake Well Before Use - http://tiny url.com/ypcljm”