 Believe in zero exploited children. Visit unicefusa.org to learn more. That's U-N-I-C-E-F-U-S-A dot O-R-G. AdoptUSKids presents What to Expect When You're Expecting. A teenager learning the lingo. Jelly. Jelly adjective. Jelly is a shorter, better way to say jealous. As in, Chloe, I am like so jelly of your unicorn phone case.