A sexual position where a boy uses the girl's legs like a train track and pounds her in like a choo choo train. Think missionary but on steroids with leg burns.
That boy trainwrecked me hard last night. I might possibly have leg burns by the friction of his hairy legs.
A person who is highstrung; who comes into a new relationship with a lot of unresolved issues; who has a lot of emotional baggage; who needs a lot of support and attention from their partner
"I'm looking to date someone a little more stable, since my last partner was an emotional trainwreck."