1)Hitting on
-All the girls were hitting on Cameron, but he had eyes for only one girl.
-Dorothy could tell when guys were hitting on her female friends, but she was oblivious to guys hitting on her.
-I will use pheromones to boost the chance of girls hitting on me.
Definition: to flirt with someone; to make a pass at someone
Etymology: to strike, to discover something.
2)Wash hands of
-When the big country invaded a country, after 5 years of constant fighting they just want to wash their hands of the country.
-That girl is trouble; just wash your hands of her.
-That car has so many problems, its better to just wash your hands of it.
Definition: to refuse to take responsibility or involvement
Etymology: The biblical account of Pontius Pilate washing his hands and refusing to condemn Jesus.
3)Keep the ball rolling
-We need to keep the ball rolling on tackling Climate change
-The singer needs to keep the ball rolling producing hit songs
-I need to keep the ball rolling on thinking of idioms
Definition: To keep something that is moving to continue
Etymology: Comes from William Henry Harrison, Who used a giant ball with his campaign slogans and rolled into the White House. Ironically William Henry Harrison campaigned so hard and had the longest inauguration speech. He caught pneumonia, and died a month into office.