Is an acronym for (Cock Sucking Representative)
Him: Hello, nice to meet you!
Her: Likewise!
Him: What do you do for a living?
Her: I work as a CSR.
Or
Her: Hi honey! How was your day?
Him: Pretty bad...
Her: Aw! I'm sorry.
Him: I could really use a CSR.
Her: Hmmm... I can help with that!.