Portmanatee

it's a new word (aka portmanteau) constructed of other words that is too clumsy and unwieldy to be taken seriously.

Sarchasm

Sarchasm
The gulf between a dry wit and a dim-wit. If your humour is blunted on someone, that's the sarchasm.

Propergation

Todays word is propergation - this is when information gets to the places it's meant to get to and no more. This word has fallen out of use with the advent of the IT era where information rarely gets to the places it's meant to and invariably ends up everywhere else instead.