1. reach the low point; - Example: "Prices bottomed out and started to rise again after a while"
2. hit the ground; - Example: "the car bottomed out where the driveway meets the road"
WordNet (r) 3.0 (2006):
bottom out
v 1: reach the low point; "Prices bottomed out and started to
rise again after a while" [ant: peak, top out]
2: hit the ground; "the car bottomed out where the driveway
meets the road"