shnump
a state of drowsyness that lasts the entire day. a shnumped person may also feel bored or confused without an interest as to finding out why. shnumpyness is not to be confused with depression, but may also be referred to by some as the "rainy day" feeling.
Tom: "Hey man, wanna play Halo?"
Marty: "Maybe tomorrow, I'm in a shnump today."
Marty: "Maybe tomorrow, I'm in a shnump today."