Amazeballs - used to find something extremely good.
buzz - excited interest
catfish - a person who sets up a false profile.
cot potato - a very young child who spends a lot of time watching telivision
daycation - a trip which lasts only for 1 day
dench - extremely attractive
elancer - A professional person who works from home and provide services on the internet
flash mob - a crowd that gathers in a pre-determined place
flog - a fake blog
frenemy - an enemy who pretends to be your friend
geek - a person obsessively concentrated on a particular interest
bling - expensive
crunk - very excited
la-la land - dream world
woots - used to express elation