Simple Definition of sissy
: a boy who is weak or who likes things that girls usually like
: a person who is weak and fearful
Full Definition of sissy
: an effeminate man or boy; also : a timid or cowardly person
Examples of sissy
The other kids laughed at him and called him a sissy because he didn't like sports.
<the candidate touts his wartime service as evidence that he is not a sissy>
Origin of sissy
First Known Use: 1879
Seen and Heard
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