To express that something will require an above-and-beyond effort. Originates from software developers using the royal cards (Jack, Queen, King and Ace) from a standard deck to play Planning Poker.
by JettaC January 18, 2011
Get the Jack and a halfmug. My half-siblings is a good person.
by Sonyc September 22, 2023
Get the half-siblingmug. 1. The time taken for the radioactivity of a specified isotope to fall to half its original value. the time required for any specified property (e.g. the concentration of a substance in the body) to decrease by half.
2. One of the best video games you could ever play along with Portal.
2. One of the best video games you could ever play along with Portal.
Scenario1: "Iodine-131 has a Half-life of 8.1 days"
Scenario2: I love Half-life, the story and gameplay is just mind blowing!
Scenario2: I love Half-life, the story and gameplay is just mind blowing!
by Zach T. Radass December 19, 2022
Get the Half-lifemug. A song that is built around--or relies so heavily on--a sample from another it might (or might as well) be considered a mashup of the new song and the sampled one.
"Pepper” by the Butthole Surfers samples “Loser” by Beck, and “Ice Ice Baby” by Vanilla Ice samples “Under Pressure” by Queen so much that each might as well be called a mashup, or at least a "half-mash."
by Hoban Alleyne May 21, 2018
Get the Half-mashmug. 
Get the half-co-niece-in-lawmug. by Enderdragon2032//4_7D September 21, 2022
Get the Half-Veganmug.