A useless or junk item
Encoding Strategies:
mnemonic

trash
useless item
+
-o
noun suffix
Trasto means piece of junk and sounds like the English word trash0 turned into a noun1.
trasto
piece of junk, useless object
A useless object that clutters a space.
- El garaje está lleno de trastos viejos = The garage is full of old junk
- Tira ese trasto, nadie lo usa = Throw that piece of junk away, nobody uses it
rascal, little troublemaker (affectionate)
A piece of junk is something you don't know what to do with. When used affectionately for a child, it's like saying, "What am I going to do with you?"
- ¡Ven aquí, trasto! = Come here, you little rascal!
- Este trasto no para de meterse en líos = This little troublemaker never stops getting into mischief
trastos
utensils, gear, stuff, things
The utensils or gear for a given activity — just the stuff or junk you need to do it.
- Recogió los trastos de pescar y se fue al río = He picked up his fishing gear (his fishing junk / stuff) and headed to the river
- Guarda los trastos de pintura cuando termines = Put away your painting things (your junk / stuff for painting) when you're done
- Voy a fregar los trastos antes de acostarme = I'm going to do the dishes before going to bed (wash all the junk in the sink, the dirty miscellaneous kitchenware)