bite off more than sb can / could chew

/bˈaɪt ˈɒf mˈɔː ðɐn ˌɛsbˈiː kan kʊd tʃjˈuː/

/bˈaɪt ˈɔf mˈoːɹ ðɐn ˌɛsbˈiː kæn kʊd tʃjˈuː/

[phrase]

to bite off more than sb can / could chew

[PHRASE]

to attempt to do something that is beyond one's capability

Examples

1. oh well it's a bit like a Furby but a lot more expensive now a lot of the robots we've seen before at CES haven't gone on to be a commercial success maybe they were biting off more than they can chew will this be the one to capture everyone's heart

2. These are very carefully sort of designed sanctions to put pressure on the commander in chief, to put pressure on his children, on his family to make him realize that he has bitten off more than he can chew.

3. I don't use these things because it has a lot of similar problems to the Loupedeck CT, they tried to bite off more than they can chew.

4. Look, honestly, most Unraveleds have me biting off more than I can chew, but usually, I have chewed that bite before I have started filming.