Tsrs is an adjective referring to cool, funny, intelligent, hot and generally awesome individuals. Tsrs people are usually dark haired with glasses and commonly found in libraries and pubs. They become very good boyfriends and astrophysicists.
That man over there just held the door for me and told me I'm beautiful, he was such a tsrs!
Let's go to Nicole's party, I heard all the tsrs students will be there.