Sentence:  Their product had been endorsed by Good Housekeeping , the A. M. A. , and the Veterinary Journal , among other repositories of higher wisdom , and before much longer if you did n't have a cake of their soap in the john , <WSD>even</WSD> your best friends would think you did n't bathe . 
Meaning of the word marked with <WSD> tags:  used as an intensive especially to indicate something unexpected