1) a wiseass
2) a person whose repertoire is full of witty responses
3) a person who can shut you up with what they say
1) "It all comes down to the dymanic interaction of the intermediate variables of the DH345 rule of applied psychodynamics."
2) "I'm rubber, you are glue."
3) "Shut up bitch!"
The above are all possible responses of Celestus.