Costancita (en. Little cost)
/kos.tan.'si.ta/
Slang Meanings
It is used to refer affectionately to someone who is always present.
That little constant never leaves us alone.
Esa costancita nunca nos deja solos.
Sometimes it is used ironically to talk about someone who is not constant.
She didn’t show up today, seems she’s not so constant after all.
Hoy no llegó, parece que no es tan costancita después de todo.