Expert

[Sarah]

Taught by use, practice, or experience, experienced; havingfacility of operation or performance from practice; knowing and readyfrom much practice; clever; skillful; as, an expert surgeon; expertin chess or archery.A valiant and most expert gentleman. Shak.What practice, howsoe'er expert In fitting aptest words to things . .. Hath power to give thee as thou wert Tennison.

[Sarah]

(1.)Someone Who thinks they knew how to do something but actually just screwed everything up. (2.)Someone who goes into a serious explanation of doing something fairly simple or unimportant like how to drive a bumper car. (3.) When something just doesn't work how you want it to. (4.) an Idiot...[Nub]

[Sarah]

Ex (a former) spurt (a drip under pressure)

[Sarah]

a contract liar

[Julene]

A [has-been] [drip] [under pressure].

[Gregory]

A person who is very knowledgeable about or skilful in a particular area.

[Luis Fok]

/x, [spurt]/
X in math is an unknown and in plumbing spurt is [a drip] [under pressure].

[Hina Muqadas]

A paid [shill] that often goes on television pretending that they know more than everybody else to promote the false agenda of whoever is paying them. Note: they often [sprinkle] in facts and figures to confuse the viewer but never give an accurate picture of [the issue] being discussed.