'Ello gov'na 

A British greeting originated in the southernmost parts of the United Kingdom, most commonly associated with Cockney speakers. It may be interpreted as a lowbrow way of saying "Good day to you." or simply "Hello, sir/miss." and it is thus often used by non-British speakers of English to create a comical effect of sorts, or just to make fun of that specific dialect.

Hello there, Nigel! Smashing to see you, old boy!
'Ello gov'na!

'Ello gov'na by Moshmellow June 19, 2010

'ello govnah 

The Way British People Say Hello

Oi 'ello govnah Tim's been eating glue again ey?

'ello govnah by William ShakeBeforeUsing Spear May 10, 2019