prim in WordNet English dictionary

1. affectedly dainty or refined
   dainty  mincing  niminy-piminy  prim  twee 
   
2. exaggeratedly proper
   "my straitlaced Aunt Anna doesn't approve of my miniskirts"
   priggish  prim  prissy  prudish  puritanical  square-toed  straitlaced  strait-laced  straightlaced  straight-laced  tight-laced  victorian 
   

1. dress primly
   prim  prim up  prim out 
   
2. contract one's lips
   "She primmed her lips after every bite of food"
   prim 
   
3. assume a prim appearance
   "They mince and prim"
   prim