When I trigger the script from my bot:

[22:04] <+Weapon-X> !ud cock block
[22:04] <+Botthole> [Urban Dictionary] ~ (1/90) ~ cock block: Trudy and Dan frequently had time alone but her cockblocking roommate ruined any chances they had to have sex. (No example given)
[22:04] <+Botthole> [Urban Dictionary] ~ Author: Apr 13, 2003 ~ Date: ~ Url: http://www.urbandictionary.com/define.php?page=1&term=cock+block - (15 seconds until next definition)

[22:04] <+Weapon-X> !wod 1
[22:04] <+Botthole> [Word of Day ~ 1] ~ gaydar detector: (Les's gaydar detector was going crazy when she drove to Laramie.)
[22:04] <+Botthole> [Word of Day] ~ Author: ~ Date: Nov 15, 2009 ~ Url: Check the homepage @ http://www.urbandictionary.com/ - (15 seconds until next word of the day)

The first line, where it gives the definition of the word, does not get posted.