phantasmagoria /ˌfantazməˈgɒrɪə, -ˈgɔːrɪə/

noun
a sequence of dreamlike real or imaginary images.

– derivatives
phantasmagoric adjective,
phantasmagorical adjective.
characterized by fantastic imagery and incongruous juxtapositions

Origin C19 (orig. the name of a London exhibition of optical illusions): prob. from Fr. fantasmagorie, from fantasme ‘phantasm’ + a fanciful suffix.

I am still trying to work out which bit of Fantasmagorical means " I saw a hideous wobble ""

Nice catch!

That would be the "incongruous juxtaposition."

Bingo !