After my first dabbling in etymology, I feel that I have a duty to share with you words that I think a) I need to use more and b) you might not have heard and should also use more.
Blowhard. noun. An exceptionally boastful or talkative person.
Example: Leslee Unruh, founder and president of the Abstinence Clearinghouse, is a total fucking blowhard when it comes to the unproven, insane claims of the effectiveness of abstinence-only education. She routinely touts in public how incredible her achievements are, when in fact she totally sucks.
Examples of Leslee blowharding:
"We've been very successful to chip away at the laws of Roe v. Wade in South Dakota, and we think the rest of the country should really be following us, and following the heartland," she said in a February 2006 appearance on NPR's Morning Edition. (cite)
Remember that ban? The one that was rejected by South Dakota's own voters? Thought so. Suck it, Leslee.