"understand?"

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life

Do you understand what I just said?

1. to understand something

2. knowledge

3. knowledgeable
(from spanish, Sabe, he knows)

Technically means "Well-informed, perceptive, or shrewd"; in the summer of 2003, fans of "Pirates of the Carribean" adopted the meaning given to the word by Johnny Depp's Catain Jack.

Now used by PotC fans to mean, "Get it?"

to be clued up is to be savvy. comes from the french verbs 'savoir faire', which means the 'know how'.

a noun or adjective indicating anything a high level of knowledge in some field (i.e. fashion); since The Pirates of the Caribbean came out, it has often been equated with "understand"

Regarding the etymology of the word, it is most likely another anglified French word, from the original "savoir," which means "to know." Like parley (also used in "Pirates"), which means "to speak," it was probably absorbed into the English vocabulary back when French was more of a global language.