"Jeffervescence" is the quality that someone named Jeff possesses when he is overflowing with enthusiasm, sparkling with charisma, beaming with light, exuding joy. The term was coined by Suzanne Whang (former host of HGTV's #1 show, "House Hunters") and was inspired by watching Jeff Vezain perform on stage with Gary Sinise's Lt. Dan Band.

As soon as he made his entrance on stage, grabbed the microphone and started singing, the audience was delighted and transfixed by his Jeffervescence.

Jeffervescence by SneezyDwarf August 4, 2016

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jefferine

An noun representing a respected human being found in urban to suburban environments known for spending more hours studying at home than the hours spend in school, hanging out, and sleeping combined. Typically, a jefferine would be dissatisfied with a 99% because he or she believes that the amount of time put into studying should correspond to a 100%.

A: Why does John always rush home right after school?
B: Haven't you heard? He's a jefferine; according to my arithmetic, 7 hours of school and 5 hours of sleeping amount to 12 hours, so he has to spend the remaining 12 hours studying.

jefferine by mrexotic September 5, 2012

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Thomas Jefferson

Basically a guy who had a lot of beef with Alexander Hamilton.

teacher: "Thomas Jefferson was a cocky son of a bitch"

me: "oh trust me, I know."

Thomas Jefferson by hamiltonlafayettemulligan August 11, 2017

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