A term used to describe a sexually frustrated, older woman.
"That's not a cougar, that's a blue nun".
11👍 3👎
A brand of German wine which is considered "tacky and dated".
Alan Partridge:
"Yeah I'll Just have half a bottle of Blue Nun"
9👍 3👎
Someone who is always sniveling and whining
Joe: Bill takes the fun out of everything
Dave: yeah, that dude whines more than a little blue nun!