Top Definition
little brother

derived from the japanese word chisana which means tiny.

chichan in gender terms means a small person/man

chichan in non-gender terms refers to small and minimal concepts.

an awesome person, small but terrible.
I drive my chichan to school everyday.
by emorock February 08, 2013
1 more definition
Used to identify anyone who is incredibly good looking.
Damn chris is so chichan
by luigiman12 September 27, 2007

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