a weekend = Saturday + Sunday weekends = (Saturday + Sunday) * n ( n >= 2) :D

I should also note that "buds" can also be a slang word for "Budweiser" beer, one of the most famous brands of beer in America. For example: "I drank a few Buds." (this would refer to Budweiser beers)

"buds" is a male slang word for friends (usually only men will use this word. Some women may also use it, but it is a lot less common, and I definitely don't recommend using the word if you are female, as it sounds very "unfeminine").

When we use "weekends" in the plural, with no numerals attached to it, we are usually speaking of weekends in general. For example, we often start a sentence with:　＂I spend my weekends..." Such as: "I spend my weekends watching movies, shopping, cleaning house, and hanging out with my buds (a male slang word for "friends")." In this sentence, we are talking about weekends in general.

一般来说，一个周末就是星期六和星期天。因为西方人一般星期一到星期五上班或上课，所以就是这样吧。反过来，如果你的工作周是星期一到星期四的话，你就可以说“I have a three day weekend." 可是，这是很不寻常的。有时候大部分的美国人都享有“three day weekends." 比如：要是星期一是一个节日的话，星期六到星期一都不要上班儿，你可以说："I have a three day weekend." 可是，平常我们只用“weekend"指“星期六和星期天“的意思~ ︿︿