Spanish phrase
No cuentes conmigo.
Meaning
Don't count on me.
When to use it
Says that the speaker cannot be relied on. Informal refusal to take responsibility or help, often used among friends when unprepared.
Example dialogue
¿Contamos contigo para la presentación del viernes?
Can we count on you for Friday's presentation?
No cuentes conmigo, todavía no he preparado nada.
Don't count on me, I still haven't prepared anything.