A person that knows how to use a language very well and has an eye for coming up with his own words. Usually a person that is fun and talkative and WITTY.
Fluent, smoot and articulate. Practising verbal acrobatics needs a good general knowledge so that one can be very tricky and witty.
Using legal trickery and technicalities to weasel one's way out of paying a bill or debt. Alternately using trickery and technicalities to make one pay a debt or bill despite their having good reason not to.
All it took was one hair within 3 yards of the soup and some Jew Acrobatics to avoid our restaurant bill.