The greasy, thoughtless mediocrity of slop billboard images is offensively bland, to pick an overused phrase. It's like whipped saltless vegetable oil smeared across a stale slice of wonderbread with a dollar store garden trowel, tossed half off a dinner plate by a server allergic to eye contact holding a leaking trash bag in their other hand.
That is, the offense comes not just from the garbage immediately in front of me, but rather every aspect of the entire experience.
Distilled contempt.