A time in your life where every other girl than your CRUSH likes you. Trust me fellas, it's pretty tough and meaningless at that point. Stay STRONK!
Me: Hey, Dave, I really have a crush on Sienna. She looks so fine, is funny, and is just plain beautiful bruh.
Dave: Nice man.
Me: FOR SOME REASON though, every other girl has a crush on me and wants to be with me, but Sienna doesn't want to be.
Dave: Sounds like your going through Crush Syndrome, just keep trying with her but know it will be tough my G.
Second Hand Crush Syndrome (SCS) Is when you see your friends crush and start to feel mild side effects of having a crush (the crushies) because you know your friend likes them and definitely not because you have started to have feelings for this person.
A gaming term.
Train crash syndrome is a effect where you make a single wrong decision, which throws you off and you end up spiraling downwards, ultimately culminating in you failing whatever it is you're trying to do, be it dying, losing a minigame, or running out of time.
Derived from how a crashing train proceeding gets worse as it goes on, as more cars derails and cause more damage.
Guy 1: Damnit, I got hit
*proceeds to fail level."
Guy 1: Argh! What the hellhappened? I was doing so well.
Guy 2: That's just train crash syndrome my dude.