used when your mocking a person not actually congratulating them
Little kiddie:Hey daddy, I can ride my bike!
Dad:Congrat-U-Fucking-Lations can I go inside and drink a fucking beer now?
John: Congratufuckinglations my mom is 76 and overweight. Good one man.
Or, Max: Yes I finally beat level 25 im fucking awesome.
James: Wow, congratufuckinglations why don't you go outside now you geek.