What (who) is slap on the side - definition

1996 SINGLE BY BEVERLEY KNIGHT

Moving on Up (On the Right Side); Moving On Up (On The Right Side); Moving On Up (On the Right Side); Moving on Up (on the Right Side)

slap on the side

(Also called a sidecar, or abbreviated "SOTS"). A type of external expansion hardware marketed by computer manufacturers (e.g. Commodore for the Amiga 500/1000 series and IBM for the hideous failure called IBM PCjr). Various SOTS boxes provided necessities such as memory, hard drive controllers, and conventional expansion slots. [Jargon File]

Slap (magazine)

SKATE MAGAZINE AND LATER WEBSITE

Draft:Slap (magazine); Slap magazine; Slap Skateboard Magazine; Slap Magazine

Slap Magazine was an American skate magazine created by Kevin Thatcher and Fausto one late night when they sparked an idea to create their own competition. At the time they ran Thrasher Skateboard Mag.

https://en.wikipedia.org/wiki/Slap_(magazine)

On the Winning Side

ALBUM BY COMMISSIONED

On The Winning Side (album); On the winning side

On the Winning Side, is an album by American contemporary gospel music group Commissioned, released in 1987 on Light Records.

https://en.wikipedia.org/wiki/On_the_Winning_Side

Wikipedia

Moving On Up (on the Right Side)

"Moving On Up (On the Right Side)" is the fourth single released by British R&B singer-songwriter Beverley Knight, taken from her debut album The B-Funk (1995). It was written by W. Jones and S. Jones and produced by The Ethnic Boyz. The song contains a sample of "You're Too Good To Me" by the soul musician Curtis Mayfield, which was also sampled by American singer-songwriter Mary J. Blige on her single "Be Happy" for her second album My Life (1994). Both songs were recorded in 1994.

"Moving On Up (On the Right Side)" peaked at #42 on the UK Singles Chart when it was released in March 1996 as a single. The song did not have a promotional video made to accompany the release but it received support from urban radio which helped the release chart inside the top 75. The single is one of the few original recordings (excluding cover versions) released by Knight to date that she did not write herself.

Knight most recently performed "Moving On Up (On the Right Side)" on her Soul UK tour as part of a medley.

https://en.wikipedia.org/wiki/Moving On Up (on the Right Side)