noun, plural sis·sies.
Examples from the Web for sissy
I should like it best if I could just write 'Sissy' and nothing else, as I do at the end of my letters.
British Dictionary definitions for sissy
noun plural -sies
Word Origin and History for sissy
1846, "sister," extended form of sis (q.v.). Meaning "effeminate man" is recorded from 1887; the adjective in this sense is from 1891. Related: Sissiness. Sissy bar is recorded from 1969.