an oddacy could be a girl who likes to count her pieces of cereal before she eats them, some awkward exchange between strangers, or a person's ability to bend his or her thumb backwards.
1.The epitome of rudeness hypocrisy. Has the absolute brass neck/gall/nerve/impudence to completely ridicule an adversary while simultaneously and weirdly and intentionally doing the exact same thing. The ultimate troll. The don curly wurly of unfounded arrogance.
2. A person who claims to be a connoisseur of alcohol which is just a posh and watered down version of an alcoholic.
How dare he/she/(non-binaryidentification) have the oddacity to plagiarise me plagiarising the person who claimed to have invented plagiarism.