Excessively, unnecessarily and confusingly arrogant. A former frat boy that now desperately clings to his 20's as he goes deeper into his 30's. He feels the need to constantly remind (much to the chagrin) everyone around him, including strangers and friends, about how 'awesome' he is.
Can you believe that guy is wearing three pastel polo shirts with all of the collars popped; what a skanch!
Skanch is a pejorative term for a person (usually female) who is more sexually promiscuous than is deemed socially acceptable. The term has traditionally been applied to women and is generally used as an insult or offensive term of disparagement.