The NFL playoffs are here. Yabba Dabba Doo! Mack Hollins never arrives to Highmark Stadium, or any stadium, wearing shoes or socks. If it were so easy, a caveman would do it. Enter Fred Flintstone.

You can hear the serenade of a pretty little monkey maid And in monkey land, a chimpanzee climbed up a tree Oh, he'll be true to monkey-doodle-doo way down in jungle town Yabba dabba dabba in monkey ...

RELATED: Yabba Dabba Doo! The “Fred Flintstone” Air Max 1 Is Straight Out of Bedrock The custom design captures the essence of Fred’s vibrant personality, featuring a classic colour scheme ...

Legend said in his caption ... In the sweet video, the family attempted to cheer "yabba dabba doo," though the kids couldn't quite seem to figure out the tricky saying. "This Halloween was ...