Beaucoup means "a lot." There's beaucoup interesting things to learn out there, but unfortunately also beaucoup responsibilities of daily life to interfere with learning about them.
Beaucoup is a loanword from French, where it means "much" or "a lot." (It actually comes from two words meaning "beautiful or great" and "hit or pile.") In English, it was borrowed verbally, often by non-French speakers, so it's been spelled a pretty wide variety of ways: boocoo, boocup, buku, and beaucoup more, so you might have heard it without knowing it was spelled like that.