You exercise in your regular clothes or wear your 10 year old T-shirt and bum around shorts.

你穿特定的衣服或者穿你10岁时的T恤和超短裤锻炼。

youdao

If you always kept the wine to drink, you can't sell a bum vintage and then take a tax loss.

FORBES: Grape Expectations

It's not that we don't all love her, but with the bum economy, the houses we can't sell and fears of a Wall Street meltdown, we're just not looking to spend, you know, as much on her this year.

FORBES: Mother's Day By The Numbers

So if you don't like me, go ahead and just say, you know, you're a bum -- that's okay.

WHITEHOUSE: Town Hall in Los Angeles