to decorate or add something to something to make an effect: The room was decked with flowers.
What do you mean by decked?
2a : to clothe in a striking or elegant manner : array decked out in furs. b : decorate deck the halls with boughs of holly — English carol. c : to portray or present with embellishments. 3 [deck entry 1] : to furnish with or as if with a deck. 4 [deck entry 1] : to knock down forcibly : floor decked him with one punch.
What is mean by decked up?
Definitions of deck up. verb. put on special clothes to appear particularly appealing and attractive. synonyms: attire, deck out, dress up, fancy up, fig out, fig up, get up, gussy up, overdress, prink, rig out, tog out, tog up, trick out, trick up dress, dress up.