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1.
A prevailing and pervasive Chinese slang referring to the asshole since their verisimilar figures. Firstly used on the web by slash fans then went householding across the country due to its subtly, vividity and artistry that suits both refined and popular tastes. Usually used between boys when badinaging and mostly strongly relating to an anal sex, which is a form of sex often happens between gays. The most famous collocation is to "explode one's chysanthemum" which means to shove a penis, a dildo, a cob or whatever it is into someone's asshole and get it bloody as a result.
My chrysanthemum itches.
I'm gonna get your chrysanthemum imploded.
Wash your chrysanthemum and wait.
by Sultry Duckling September 20, 2010
 
2.
chrysanthemum

Any of numerous, mostly Eurasian plants of the genus Chrysanthemum in the composite family, many of which are cultivated as ornamentals for their showy, radiate flower heads.
A flower head of one of these plants.
chrysanthemum concrete
chrysanthene
chrysanthemum tea
by Anonymous October 30, 2003