This means to receive categorical assurances on which you (should) know you cannot rely, but some people still do.
to bo-jo (verb) - as in 'Matt Hancock was well and truly bo-joed before he decided to resign.' or as in 'People in Northern Ireland were bo-joed over the border issue in the Northern Ireland protocol.'
by baslowman July 6, 2021
Get the to bo-jomug. 
by Wowrealy July 25, 2021
Get the Jo-deemug. 
an acid attack.
Other Forms: The Jo Brand, Jo Branded
brought to you by Jo Brand, a British "comedian"
Quote: “Certain unpleasant characters are being thrown to the fore, and they’re very, very easy to hate, and I’m kind of thinking, why bother with a milkshake when you could get some battery acid?
That’s just me, sorry, I’m not gonna do it, it’s purely a fantasy, but I think milk shakes are pathetic, I honestly do. Sorry.”
Other Forms: The Jo Brand, Jo Branded
brought to you by Jo Brand, a British "comedian"
Quote: “Certain unpleasant characters are being thrown to the fore, and they’re very, very easy to hate, and I’m kind of thinking, why bother with a milkshake when you could get some battery acid?
That’s just me, sorry, I’m not gonna do it, it’s purely a fantasy, but I think milk shakes are pathetic, I honestly do. Sorry.”
by SciFi_Ninja June 18, 2019
Get the Jo Brandingmug. by Coop Dupe January 20, 2020
Get the Jomug.