Definition - What does Kaepernicking mean?
Techopedia explains Kaepernicking
The meme apparently started in the 9th of December 2012 when the @NFL_Memes Twitter feed posted a photo macro of Kaepernick in his signature pose featuring a caption which read "Score a touchdown, kiss your tattoo!" at the top and a "#KAEPERNICKING" hashtag at the bottom. Within the span of a month, the tweet was retweeted more than 350 times and garnered 125 favorites. On the same day of the @NFL_Memes tweet, Colin Kaepernick himself retweeted it followed by a response stating "love my tats even if you don’t."
This meme or photo fad actually has its origins in "Planking" and is simply considered as a variation of that. It is the latest coming from the NFL or Football scene, with the last one being "Griffining", with other notables memes "Tebowing", "Bradying", and "Gronking". However, the action itself is nothing new as many people and even other professional athletes have performed this action prior to it becoming a meme/fad, most notable of which is NBA star Ron Artest (Metta World Peace), and pro wrestler Scott Steiner.