When you just can't wait for Monday to come, usually because you'll be back at school (or work), and you make a huge deal about how excited you are.
A: Oohhh.... I can't wait for Monday! I'm so excited!!!
B: You idiot! Why would you WANT to go to school???
A: Because then I can go to all my exciting classes!
*B leaves, realizing that A has "monday love"*