A non-existant ten pound note, which is used for the purpose of online wagers or bets with others; where there is no intention of money changing hands regardless of the outcome.
The phrase originates from the online UK motorbike forum 'Visordown', specifically a user called 'Soapy' known for making bets with no intention paying anything.
A graduated cylinder and/or beaker cleanser that is basically magic. The name says it all. It is a solution to anything. Get leftover experiment residue on your beaker? Soapy solution can fix that. Drop your beaker and it shatters? Soapy solution can fix that. Burn your beaker to smithereens? Soapy solution can fix that. Soapy solution is to be used responsibly. Using this great power any more than you have to, and soapy solutions can control your life. Soapy solution is a force to be reckoned with.
Ted dropped his glass beaker, but he wasn't worried, because he knew soapy solution could fix it.