slackin' and jackin' 

Generally goofing off when work needs to be completed also implying that one jerks it during working hours.

tha boss: where are all the junior workers at?

shift manager: I'm not certain but I'll bet they're slackin' and jackin' in the janitor's closet or bathroom.

slackin' and jackin' by cats pajamaz July 8, 2010

snackin and jackin 

“snackin” (smooching on yo gal) and “jackin” (jackin yo boys dickle)

Jake: “Hey Jasmine what’d you do with your husband this weekend?”
Jasmine: “Just snackin and jackin my dude”

snackin and jackin by Yo Boi Pablo April 24, 2018