A musician who participates in sessions, including jam sessions and professional studio sessions.

When you meet someone who claims that Mark Hamill is a good actor.

When you know with 100% certainty that if your house were to catch fire, your children would rescue their phone before they rescue you.

When you call a number for customer support, get asked to press a bunch of numbers to get the next menu...

When a client, customer, company deny that you sent them the assets / things they need to complete some work / project.

Plate Tectonics, but when the process happens really fast.

Persuading someone to do work for you, which they don't really wish to do, nor do you deserve them doing. It's like enslavement but without the bars.

More than a couple, but less than a few.

The product that you cannot get to at the end of a bottle / tube.

This is the podcast version of running a marathon every day. Someone who is "podoverdoing" is producing a good length podcast every day.

When you deliberately spell your email address incorrectly, but plausibly, so that the recipient will assume that they can contact you, but in reality cannot.

When someone gives you change at a restaurant or bar, all in small denominations, so you do not have an excuse to not tip because you don't have the change.