Jump to it
Definition 1 of 1
Pro Tip 1/3Responsive Action
Use 'jump to it' to show you're responding quickly to a request or command, indicating a sense of urgency. 
As soon as the teacher asked for homework, the students jumped to it.
Pro Tip 2/3Not Literal
'Jump to it' is not about physically jumping; it's a figurative way to express quick action. 
My mom mentioned she was thirsty, so I jumped to it and got her a glass of water.
Pro Tip 3/3Casual Tone
Best used in casual or informal situations; might be too casual for formal or professional conversations. 
We're late for the movie, jump to it!