generated in the south,the slang phrase,"Too Serious" isn't well known.the term "too serious" has been used over and over,making the term itself,ironically,too serious.
other variations of the word,"too damn serious","too fucking serious","you're so serious",Etc.
Jimbo Jim:man that chick is too serious.id really like to slit her throat and hide her body in a dumpster.
billy bob joe:jesus christ man! YOU'RE too serious!
jimbo jim:you're name is too serious.bam.
billy bob:shit man,you know sometimes..sometimes words hurt..