Their use of vulgar idioms that don't fit the context suggests that our "trolls" are a pair of 10-year olds who have just heard these vulgarisms for the first time.  Teenagers would have found equally offensive vulgarisms that fitted the context.

Allen A. Smith, Ph.D.
Barry University
School of Graduate Medical Sciences
    Podiatric Medicine and Surgery
Miami Shores, Florida  33161-6695