Tener mucho morro
Tener un morro que se lo pisa
Tener más cara que espalda
The title’s expressions can be used in the same context or situation, they are completely synonymous.
As well as saying to someone he has tuft, we can also say: “He’s got a cheek! (tiene más cara que espalda)”.
This expresion means for a person that he is audacious or debauched, that he dares everything, nothing makes him afraid. Literally it means that a person has “a big face” or “more face than back”.
Example: “This man has tuft. Last year, he didn’t stp to cop out , he didn’t accomplish its taks or its goals, and now he’s got the cheek to ask a pay rise. « How can he dares it ! »