what is the meaning of the phrase "they stop being so mean with everyone " ; Is this american or british .....

How do native speakers pronounce words ends with "sts" ? eg:Tests please send a sound file....Thank u TONY for your kind answer. I will be very thankful again if someone put or send a sound file of actual pronunciation . I have one question too, How to pronounce "Terrorists " , Is it "Torrori"+"sstehs" or as told by Tony "Torrori"+"sstuhs" .