In place of seven thousand thirteen, he would say (for example) Máximo Perez; in place of seven thousand fourteen, The Train; other numbers were Luis Melián Lafinur, Olimar, Brimstone, Clubs, The Whale, Gas, The Cauldron, Napoleon, Agustín de Vedia.
He also appears in Borges' short poem "The Dagger", which begins:
A dagger rests in a drawer.
It was forged in Toledo at the end of the last century. Luis Melián Lafinur gave it to my father, who brought it from Uruguay. Evaristo Carriego once held it in his hand.