Well, it probably isn't a spoof of Harbor Freight; they just use much the same format for their promotional circulars, and they're the format example I'm most familiar with.
Super vulgar, thus NSFW, but I hurt my lungs laughing.
(https://scontent-atl3-1.xx.fbcdn.net/v/t1.0-9/50514925_2196546877274605_1556874904056365056_n.jpg?_nc_cat=1&_nc_ht=scontent-atl3-1.xx&oh=173eccd2ffec0f46104c3ab362215fbb&oe=5CC9B08F)
Hat-tip a friend on FB, who got this from Teenage Step-dad.