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um and ah
To be hesitant or indecisive, especially when speaking out loud about a decision. "Um" and "ah" are common filler words used by habit or when one is deciding what to say. Try not to um and ah so much when you're considering a counter-proposal—it's not professional. It felt like that guy ummed and ahed for five minutes before he gave me his order. Which was a burger and fries, by the way.
n. an asshole; a really wretched person. (A euphemistic disguise. Also a term of address. Rude and derogatory.) Look here, you goddamn AH! Who the hell do you think you are?
exclam. Yes! Are we ready? Hoo-ah! Hoo-rah, hoo-rah, hoo-rah.