shout-out (n.) Slang. A public expression of thanks or gratitude

I couldn’t care less (but one must keep up appearances, right?)

To acknowledge someone. To make ones presence known.

A positive public acknowledgement of a friend.

1. Shout Out and Hip Hop History - FYI:
DNA, coined the phrase "Shout Outs" in the fall of 1984; while producing a Rap Radio Show on the former WHBI 105.9fm radio station in New York City.

2. On Saturday-May 25,1985 DNA Created, Produced and Hosted his own, All Rap Music - Radio Show with his assistant DJ-Hank Love and various other DJs he help to discover... The Radio Show was called " The DNA-Hank Love Show..." from (May,1985 - November,1992)

3. NOTE: Where the phrase "SHOUT-OUT / SHOUT-OUTS", which DNA coined became "World-Famous..." (Now This is Hip Hop History...)

4. Be sure to Google "WNWK 105.9FM" and heard Real Rap and Hip Hop Shout Out history.

To acknowledge with respect.

1. A message to friends, family, etc. lodged on a radio station, web site, or other popular medium.
2. An inane activity chowing up airwaves, electricity, and bandwidth.

Hint: UrbanDictionary.com is for definitions, NOT SHOUT OUTS.