The track was written by the two along with Nate Walka, Ronald M. Ferebee, Jr., Tony Scales, and Don Correll, with the latter producing it with Troy Taylor and Young Yonny.

The song has lyrical content referring to a night of drinking during a birthday celebration, with the title referencing the eponymous phrase said doctors or dentists to denote a patient's oral treatment.

Recorded at Atlanta's D2 Music Studios in 2009, "Say Aah" was written by Trey Songz, Fabolous, Nate Walka, Ronald M. Ferebee, Jr., and Tony "Chef Tone" Scales.

[1] According to Songz in an interview with GoWhereHipHop, Fabolous decided to record a verse for track the day Ready was set to be mastered, which was during the week of the release of his fifth studio album Loso's Way.

[2] In an August 2009 interview, when asked about Fabolous's appearance on the track Songz insinuated that "Say Aah" would be released as one of the last singles from Ready, calling it "one of the hottest club records to be out next year.

[6] The title refers to the imperative phrase Say Aah, often said by medical doctors when they want to inspect the mouth cavity of a patient.

[8] Commenting on the song's lyrics, Chris Ryan of MTV Buzzworthy stated that, "Its over-abundance of hooks ('we don't buyyyy no drinks at the bar' being a personal favorite) makes it pretty hard to dislike.

[12] On February 22, 2010, the single became Songz's first song to be recognized by the Recording Industry Association of America, with ceritifed sales of 500,000 units.

[15] Wynter Gordon, DJ Clue as well as Jessica White performing the owner of the Party make appearances in the video.

[16] He further explained, "The song speaks on more so a club atmosphere, but the video is more lofty — sexy women all over the place, adults having fun.

[7] The video starts with Trey arriving at the club he gets out of the car and walks towards the guard, telling him "Aye, when I give you these keys homeboy, don't move my car man, I ride in the front ya dig, Don't move my shit man..." before he walks toward a girl who is alongside her boyfriend and tells her (ho baby, what's your name) and then he gets into the club and then the song starts.