Englishvegetate
verb
it is important not to let him vegetate in front of the television:
do nothing, idle, be inactive, languish, laze (around), lounge (around), loll (around), loaf (around), slouch (around);
go to seed, degenerate, molder, stagnate;
informal hang around, veg out;
British, informal mooch about, mooch around, slummock;
North American, informal bum around, bat around, lollygag.