on its thick bit
A short phrase generally implying agreement, gratitude, consent, or in some cases, disbelief. It has more frequent use in the UK among young people; origin unknown, but it may derive from advice on how to hold a blunt.
"All right, Tony? I'm going to the bar. You want another one?"
(Consent and gratitude) "On its thick bit!"
~~
"Just found out that Tracey's gone and got herself up the duff again."
(Incredulous) "On its thick bit!"
~~
"I don't like that Dave anymore. I think he's a nasty racist."
(Agreement) "On its thick bit!"
(Consent and gratitude) "On its thick bit!"
~~
"Just found out that Tracey's gone and got herself up the duff again."
(Incredulous) "On its thick bit!"
~~
"I don't like that Dave anymore. I think he's a nasty racist."
(Agreement) "On its thick bit!"