Search Result for "overboard": 
Wordnet 3.0

ADVERB (2)

1. to extremes;
- Example: "he went overboard to please his in-laws"

2. from on board a vessel into the water;
- Example: "they dropped their garbage overboard"


The Collaborative International Dictionary of English v.0.48:

Overboard \O"ver*board`\, adv. Over the side of a ship; hence, from on board of a ship, into the water; as, to fall overboard. [1913 Webster] To throw overboard, to discard; to abandon, as a dependent or friend. To go overboard, to go to an extreme; to overdo; as, he went overboard at the buffet and got an upset stomach. [1913 Webster +PJC]
WordNet (r) 3.0 (2006):

overboard adv 1: to extremes; "he went overboard to please his in-laws" 2: from on board a vessel into the water; "they dropped their garbage overboard"