fake cough 

a tactic used when smoking weed to make the person ahead of you in the circle hit a cashed bowl. a well-timed fake cough after your hit makes them think the bowl is burning strong, so they will take a strong puff, only to find themselves with a mouth full of ash.
if you ever fall victim to the fake cough, the best option is to execute the double fake cough on the next person in line, thereby making them take an even more cashed hit.

note- someone who likes to sneak a hit may be unaffected by the nastiness of the fake cough.

wait a minute, this bowl is cashed as fuck...the fake cough! i should have known, it was cashed last time i hit it.

fake cough by Leroyjenkins May 16, 2007

Fake couch lifter 

A person when asked by a friend or associate to provide assistance with some task, agrees to help, shows up and then fakes his assistance by utilizing deception with the expectation of garnering thanks but providing no actual effort towards the task in hand.

Fred, the Fake Couch Lifter, showed up the other day to help us move house. When it came to moving the couch, he reached under the couch but did not exert any energy, thus giving an erroneous impression that he was helping to lift the couch

Fake couch lifter by Sparticus Freeholdius May 7, 2009