How'd (someone) (do something)?

"How'd" is a contraction of "How did".

Some contractions are commonly accepted in written English, such as "can't", "won't", and "I'm". But "How'd" is still not completely accepted. You can use it when you're speaking, or when you're quoting what someone says. For example, in a novel:

"How'd she get out of the house?" Bobby asked, accusingly.

(someone) managed to (do something)

The phrase "managed to ___" means that someone succeeded in doing something, even though it was difficult. For example, if the industry you work in has been going through a bad period, but you've continued to make money, you can say:

I've managed to do OK.

Here's another example:

I was a horrible student. I just barely managed to pass 11th grade.

pull (something) off

Use "pull it off" or "pull that off" when you're talking about trying something difficult or risky, but succeeding. For example, you can "pull off":

• a dangerous skateboarding trick
• getting a really beautiful woman's phone number
• passing a test that you only started studying for the night before

For example:

I know that it's a bit of a risk, but I really think we can pull it off.