だらけ

だらけ
A lot of X
Covered in X

だらけ is a suffixing noun that means “a lot of”.
It is typically used to describe there being a lot of one thing.
It may also describe something covering an area. 

Examples

• 花屋さんは花だらけだった
  The flower shop was full of flowers.
  
  
• 彼は傷だらけだ
  He’s covered in injuries. 
  
  
• 図書館だと聞いたが、行ってみたら漫画だらけだった
  I heard it was a library, but when I went, it was just manga everywhere.
  
  
• アニメグッズの店に行ったら、はしたないものだらけだった。
  When I went to the anime goods store, it was full of lewd stuff.
  
  
• この辺はクマだらけだから、クマ対策は必要だ。
  This area is full of bears, so bear measure are necessary.