Crabs that snap their human like hands in order to make a snapping sound in a "Jazzy" way
Two scientists walking on a beach
Scientist 1: Hey look at those crabs!
Scientist 2: Those aren't crabs those are Flarglesnaps, you can tell by their jazzy snapping.
Used in place of a swear word when one happens to be inconvenient (such as when one's girlfriend's parents are around). It is meant to replace an interjection, such as when one screws up or gets injured.