noun, feminine/t͡ʃinɡaˈdeɾa/plural: chingaderas
a small pile, such as of firewood; an immoral or illegal act, often with the idea of treason or deceit; shit, crap (a thing of little value or quality, or an unspecified object); bullshit (nonsense, stupidity, false statements)
“Nunca te va a hacer una chingadera.” — He will never screw you over.
From chingar (“to split lengthwise; to screw, to bother”) + -dera.