Nerd used to be a term of derision, connoting someone who was socially awkward and obsessed with a narrow field of interest. Now it’s used more admiringly for anyone who has a passion for a particular topic. Linguists call that type of softening...
fangasm
n.— «It’s my second year at Con. I love it. I learned a new word: “fangasm.”» —“Comic-Con: ‘Torchwood’ and ‘Being Human’ get cheeky” by Hanh Nguyen Zap2it July 26, 2009. (source: Double-Tongued Dictionary)
gank v. to rob, rip off, or con (someone). Editorial Note: See also gank, n. (source: Double-Tongued Dictionary)