A person who existentially resembles a speck of dry shit hanging from an ass hair of a gorilla. esp. when said person realizes this fact and sharply hones it's skill (i.e. propensity) in the execution of self-serving, smarmy, meaningless, petty vendettas for short term gain, which all results in a net tally of gains which equals to zero.
Normally the Eustachian tube is closed, but it can open to allow air through. If the Eustachian tube gets blocked, air cannot get in and out of the middle ear. The resulting pressure imbalance causes the feeling of a blocked ear. There are a variety of reasons why the Eustachian tube can become blocked or obstructed.locked ear sensation is the result of the air pressure on either side of your ear drum not being equal. Blocked ears arise when air is unable to move through the Eustachian tube to equalise the pressure.
If, and when, the air pressure is not equal the ear feels blocked. The Eustachian tube can be blocked, or obstructed, for a variety of reasons. When that occurs, the middle ear pressure cannot be equalized. The air already there is absorbed and a vacuum occurs, sucking the eardrum inward and stretching it.