Definition of "wuss"

Nov. 6 Come on you wuss, hit a basket..! John's a wuss.

1976, Univ. N. Carolina, Chapel Hill, Campus Slang typescript

You are a wuss: part wimp, and part pussy

1982, Cameron Crowe, Fast Times at Ridgemont High, spoken by Mike Damone

...if you got a reputation as a wuss around the league, nobody else would ever even trade for you, or pick you up if you got cut.

1995, Rob Huizenga, You're Okay, It's Just a Bruise Page 120

And finally, don't be a wuss. Have a rich-man's attitude. Men who have money are generally confident and assertive.

2003, Andrea P. Roberts, Uncovered: 20 Hints for Men from a Bisexual Woman Page 7

...stop, study the map, and wait for the others. It's better to be a wuss than a stud.

2003, Marc J. Soares, 100 Hikes in Yosemite National Park Page 21