In some ways I kind think every song I've written is the worst ever in some way or other. Worst lyrically, worst concept wise, worst in terms of being put to music,worst in terms of appeal, worst in terms of artistic merit etc. There's probably one or two that are contenders for ticking all the worst boxes!
I'm actually working on lyrics and something approximating a trap chorus hook topline for one at the minute that borders on the complete infantile - but fits in with a pretty dope and original hook. It's a f%£king calamity as a 'read' but it's aimed for a particular style and a particular artist so I think i 'works' as a song. It'd get slaughtered if posted in the lyrics section though