1) Kickback
-The corrupt President needed a kickback of 25% before any contract with foreign companies could be signed.
-The Insurance company got a kickback for sending patients to doctors they were friends with
-One guy in the Millionaire quiz show audience demanded a kickback for coughing every single time a right answer was mention.
Definition: is a negotiated bribe, where commission is paid to bribe taker
Etymology: colloquial, to kick behind you
2) Walk in the park
-The nerdy kid thought university was a walk in the park compared to high school were bullies picked on him
-Flying a plane is no walk in the park
-Talking about economics is a walk in the park for some people
Definition: something easy or unchallenging
Etymology: An undertaking that is easy is a walk in the park. The opposite is also true - "no walk in the park".
3) Stick your neck out
-Although everyone disliked the bosses idea, only the bosses secret girlfriend stuck her neck out to criticize him
-Alex did not want to stick his neck out for his friend, because it might risk his job
-I'm going to stick my neck out and predict a housing bubble.
Definition: to give an opinion which other people may not like or which other people are frightened to give, or to make a risk
Etymology: Most likely originated from the way chickens were slaughtered by sticking their necks out on the chopping block.