The noise made by deep-voiced men when they become shocked or surprised. Perhaps after being pelted with some form of chewy candy substance. Burr is often teamed with a shocked look , and can often have angry connotations if they are caught off guard or offended . This is a perfect of example of when Burr will be used.
'Look Sally , its a mouldy wham bar on the floor , pick it up' said Jane.
Sally picks up the wham candy bar , and waves it around in Jane's face.
Jane knocks the wham bar out of Sally's hand with generous force , and it flies towards the man seated in front of them.
a slang spoken when you can know longer talk right and call beer by the name "burr"
OR
the word when a white person trys to be african american by using the "urr" at the end of the word beer
"yo 'g-dawg homie'let's go snag some burr to quench our thirst!"