![1boy 3girls :< abs akita_neru aqua_eyes aqua_hair asymmetrical_hair blonde_hair blue_(tentai_senshi_sunred) blue_hair cameo cosplay crossover drill_hair explosion facial_hair general_vamp hat hatsune_miku helmet iyoda_mato kaito kasane_teto letterboxed long_hair megurine_luka multiple_girls mustache open_mouth parachute parody pointing pose red_eyes red_hair side_ponytail skin_tight smile sunred symbol-shaped_pupils takoluka tentai_senshi_sunred thighhighs triple_baka_(vocaloid) twin_drills twintails utau very_long_hair vocaloid yellow_(tentai_senshi_sunred) yellow_eyes zettai_ryouiki rating:s score:1 post #603826](/cdn_image/preview/72/cc/72cc45afde66dc24c8e31c76b05040d7.jpg)
For crossover images that make you think, "Wow, I never even considered the possibility of this being crossed over with that." Not a seiyuu joke or namesake, but where the artist threw together two or more series with little in common, seemingly at random. Often results when Japanese popular culture is crossed with Western popular culture.
Although it may elicit this response, one must truly consider if there is anything Touhou wouldn't be crossed with.
Applies to parodies too.