Pet Peaves in Mechanic's Lingo

N.O.S., or Nitrous Oxide Systems, is a company... and personally, I like NX (Nitrous Xpress)... The purple bottles are cooler looking than the blue bottles... Honestly, I also hate when someone says "It has NOS!" Does it really have a NOS-manufactured kit, or does it have NITROUS? :\

Also, what about NOS as in, New Old Stock? ;)