blowcock
Someone who talks a lot about absolutely nothing or talks in circles.
Glenn talked for an hour about Mike and said nothing. He sure is a blowcock.
blowcock
Someone (usually a guy) who talks big about things to make themself look better. What he can do, buy, etc. Usually what they are saying is not true at all, or it's a very large exaggeration of the truth.
James was being such a blowcock again, ranting about how many women he's been with and what type of car he drives.
BlowCock
Giving someone a barney before you dump a load
He gave me a BlowCock, what a cumster