Slavic Thunder is a very hard cough or sneeze - originally caused by tuberculosis, however it can be used to represent a very bad cough.
"Of course I couldn't come into work last week - all you could hear in my house is Slavic Thunder!"
A milf with frakin golumptious Thunder thighs
Damn bro your mom is a Thunder-milf
A thunder cunt is well... a cunt but with THUNDER. Sometimes calling someone a cunt is boring. Too spice it up the term thunder is put before it to make it better.
person 1: You ate my chips?
person 2: uhh yeah...
person 1: YOU THUNDER CUNT!!!
When someone is being the biggest cunt in existence
Dude 1: Sarah is such a bitch
Dude 2: Fuckin' thunder-cunt
Basically a cunt but 50 times worse
Tina: Becky a huge thunder cunt!
Nina: Yes she is I hope she get herpes!
When you are getting a brazillian wax and you fart
“Wow that’s almost as embarrassing as a brazillian thunder!”