1.   They both fell in an untidy heap on the floor.

2.   Her clothes were in an untidy heap on the floor.

3.   Clothes were thrown in the luggage in an untidy heap.

4.   On the outside, the shacks are untidy looking heaps, built of scraps of wood, tin and plastic, but inside they are often meticulously maintained.

5.   As in kabaddi, everybody jumps for the envelope, ending up in an untidy heap of limbs.

6.   Returning after fleeing the village, all she found left of her apartment was a dented gas stove surrounded by an untidy heap of bricks and plaster.