What is the meaning of Tosto?

toast, toasting

at once, immediately

swift, rapid, hurried

hard, tough, firm, hard-boiled, hardheaded, resistant, persistent, resilient, resolute, determined, dogged, sturdy, or rugged

difficult

badass

first-person singular present indicative of tostare

dative/ablative masculine/neuter singular of tostus

first-person singular present indicative of tostar

Source: wiktionary.org