There is some terrific (if colorful) dialogue in this movie.
Here is a link to some of the "quotes" on IMDB.
The Big Lebowski (1998) - Quotes - IMDb
As for the profanity, The Stranger actually asks The Dude "Do you have to cuss so much?" to which The Dude replies "What the F*** are you talking about?"
This is a movie you can watch multiple times and pick up different things each time.
"Nice Marmot!"