Search Result for "clutter up":
Wordnet 3.0

VERB (1)

1. fill a space in a disorderly way;
[syn: clutter, clutter up]



WordNet (r) 3.0 (2006):

clutter up
    v 1: fill a space in a disorderly way [syn: clutter, clutter
         up] [ant: clear, unclutter]