The euphoric feeling one gets upon receiving five dollars or more worth of quarters from the change machine, even though they haven't gained any money.
Person who is sitting in a public place, usually unaware that s/he is taking up two desired spaces, and later dozes off, legs spreadeagled and head lolling from one side to the other, further preventing access to those spaces. "Quartertone" comes from a musical term for tones that fall "between the cracks" on a piano keyboard, common in Asia but infrequent in music on our side of the globe.