Throwing a dictionary at your face would be more than you deserve for talking like that. "Yew" doesn't even shorten the word for Christ's sake.
A few more years of school may help this.
Relating to or characterized by reversion to something ancient or ancestral: "atavistic fears and instincts".
The Merriam-Webster dictionary has added "sexting" to the list of "actual real-life English words." God help us all...