Meaning of 一文にもならない from Super Mario RPG. (With pictures) < This is from a video teaching Japanese meaning from Super Mario RPG. Source: < The context is: Mario and Mallow(little white puff ball) are trying to get a coin back from Croco(purple guy). Croco has been punched by Mallow, then basically says Mario and Mallow can have the coin back. The part I am confused about is . The creator of the video says it means 'worthless'. How does the video creator know this? I cannot find any meaning of this online so I just want to be sure this is correct. Thank you.

It is a set phrase meaning _worthless_ , as you can see an equivalent in this dictionary entry.

{} is an old unit of money, and is the tiny amount of money (jisho) and here means _to amount to_ (jisho #7), so the whole phrase literally means _does not amount to a cent_.