Mistake, another way to say messed up. Generally a simple mistake that can or will lead to a greater error. Associated with problems that can take a while to figure out. Including homework, research, art, anything with a challenging and everything in-between.
I really donked up my homework, I thought Hydrogen had two electrons when it really had one. I wish my teacher had pointed out my simple mistake earlier instead of handing me back my paper marked up with highlighted errors. D:
Part one of the wind up was in place. Part two required that we should prepare him to win her heart and be there to witness his attempt. The following afternoon we had him all dogged up in borrowed gear.
When some resigns or retires from a job, they are on "eternity leave". This can also refer to someone who has passed away, especially someone who worked somewhere for a long time, retired/resigned, then passed away later.
Oh I'm sorry, you didn't know that Kelly is on eternity leave? She resigned and moved to Hawaii!
With regrets I would like to inform you that my boss is officially on eternity leave. I will never see or hear them again. Ever.