A watering hole is when you are engaging in anal sex and you pull out causing a large hole to appear. You must quickly fill the hole with water or a drink you would like. After this you can sip it out thus creating a water hole. Also you may fill the ass with salsa creating a perfect place to dip your chips
This girl let me give her a watering hole last night, and i definately was not hungry after it.
de the ZACH Daddie 28 August 2006