1)steal your thunder
-Brad stole his older brother's thunder by copying brilliant art homework for school.
-Brian stole Jordan's thunder in the 100m race even though Jordan had prepared for much longer.
-Alex stole his brother's thunder by bringing a more beautiful girlfriend home to meet their parents.
Definition: to take credit for something someone else has done
Etymology: in the 1700's, a bad American playwright called John Dennis produced a play that used his new thunder machine. But his play was so bad no one paid attention to his new invention. A few days later another playwright used Dennis' machine to great reviews. The term "Stealing someone's thunder" was a news caption
2)Devil's advocate
-Roy played Devil's advocate on the murder trial jury. Forcing the other jury members to spend two days away from home.
-Eric played Devil's advocate an prevented a new bill from being passed.
-Annie played Devil's advocate when she rightfully disagreed with the decision to ban candy from the town.
Definition: someone who takes the opposite side for the sake of it, even if they dont necessarily agree with it
Etymology: The background of this word comes from an official position within the Roman Church, in which a canon lawyer called the Devil's Advocate, argued against the sainthood of a candidate in order to uncover any character flaws or misrepresentation evidence favoring canonization. It is now in common usage outside religion
3)In my corner
-After Tony stood up to his bully all his classmates got into his corner
-Ronald got into his brother's corner by confirming he was not at a crime scene
-Andrew has no one left in his corner after it was discovered he beat his wife.
Definition: support
Etymology: Derived from boxing, where each boxer has his own corner, where his coach and others give him water and other refreshments to support him