said as one word--duplitard. one who says a word or phrase twice in a row without noticing it.
ex.."ooh i wonder where she got her shirt? possibly at abercrombie and fitch fitch."
Person 1: "Did you just hear Ashtyn?"
Person 2: "Yah, right? What a dupli-tard!"
pronounced--(sen-tuh-sye-uh-sis) super fast creating the word sentasieasis.
being tongue tied when trying to say "sent to iss."
person 1: "dude, aiden was just sentasieasis!"
person 2: "wtf?"
person 3: "i think he was trying to say sent to iss."