Umm....Gyo, Uzumaki, and Tomie, are probably the three weirdest things that have ever exsisted, I don't think you can get weirder than that...

Ninja Nonsense: The Legend of Shinobu. XD
I LOVEEEE that show. It's weird, but in a good way.

boogiepop phantom, didn't understand it

Azumanga Daioh is the weirdest I've ever seen. Even the opening song is ridiculous xD

Ultimate Girls. Extremely weird, a bit ecchi, really funny.

O_o dears is pretty weird.. but the anime is definitive not about melon bread or that any1 likes melon bread, more about how nice it would be 2 have a slave working for u (joke :P)

the weirdest anime i've watched gotta be gintama... if you dont find gintama funny u gotta be "special" or retarded, thats how funny it is... and there's no real plot so far in the anime.. (only watched 45 eps since they use like 2-4 weeks 2 sub one ep)... its an unique anime and a realy weird one that is...

Eikken and Golden Boy other than those mentioned above. Just bizzare, non linear, off the wall stories. But fun, though! ;)

-so forgot about super milk chan- that was just like "wtf? o.O"

gintama the name is pretty funny "Golden Balls" but eh the manga is a bore its pretty dissapointing is the anime any better or different?