perk

v. be alert, be energetic; lift one's head; be active; be cheerful, be joyful

v. percolate, brew; filter

n. side income (Slang); benefit, advantage (Slang); percolator (Slang)

Employee benefits and (especially in British English) benefits in kind (also called fringe benefits, perquisites, or perks) are various non-wage compensations provided to employees in addition to their normal wages or salaries. Where an employee exchanges (cash) wages for some other form of benefit, this is generally referred to as a 'salary sacrifice' arrangement. In most countries, most kinds of employee benefits are taxable to at least some degree.
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Noun
1. an incidental benefit awarded for certain types of employment (especially if it is regarded as a right); "a limousine is one of the fringe benefits of the job"
(synonym) fringe benefit, perquisite
(hypernym) benefit
(hyponym) appanage, apanage
Verb
1. gain or regain energy; "I picked up after a nap"
(synonym) perk up, percolate, pick up, gain vigor
(hypernym) recuperate, recover, convalesce

n. bed, boundary, frontier, pen, flash point

(v. t.)
To make trim or smart; to straighten up; to erect; to make a jaunty or saucy display of; as, to perk the ears; to perk up one's head.
  

(v. i.)
To peer; to look inquisitively.
  

(v. i.)
To exalt one's self; to bear one's self loftily.
  

(a.)
Smart; trim; spruce; jaunty; vain.