to bounce off the wall

Meaning 1
to bounce the ball off a side wall in racquetball, squash, or handball
Sentence 1
"He bounced the ball off the wall at an unexpected angle to score a point."
Meaning 2
When someone, often a child, is very energetic and cannot contain themselves.
Sentence 2
"These kids just had some candy and now they are bouncing off the walls causing a huge mess."