nut up
v.— «Children: Nut up, get out on the blacktop, and throw that dodgeball back at that little shit harder than he threw it at you. » —“Warning: This post could piss you off” in San Francisco Craigslist Oct. 4, 2004. (source: Double-Tongued Dictionary)
Further reading
For rock climbers, skiers, and other outdoor enthusiasts, the word send has taken on a whole new meaning. You might cheer on a fellow snowboarder with Send it, bro! — and being sendy is a really great thing. Plus: a nostalgic trip to Willa...
A psychiatric home health worker is curious about the use of nuthouse to mean “a mental health facility.” This term goes back to the turn of the 20th century. The word nuts itself once had an extremely positive connotation, referring to...