ser de puño cerrado 7
1º_ Stingy , mooring . Variant of "to be of the brotherhood of the closed fist", "to be of the closed fist", "to be of the guagua". 2º_ With force, to have firmness, which is associated with a fist blow. See "a clenched fist", "clench your fists", "believe a clenched fist". 3º_ And it can also be a fragment of text, which would explain the verb that in principle would be superfluous.