Answer:
UWU = a face, ty = thank you
uwu is like :) and (: and though i despise this word, XD
Explanation:
 
        
                    
             
        
        
        
Antediluvian is an adjective and has two meanings:
1) of or belonging to the time before the Biblical flood
2) Ridiculously old fashioned or greatly out of date  (sometimes used in a humorous sense)
Here, I'll use it in a sentence: 
I often feel my mother wears clothes that are so antediluvian, she never has to worry about blending in with the crowds.
<span>As soon as the latest iPhone came out, the older models became antediluvian to tech experts.
</span>
Hope this helped! :)