When you try to get the last drop out of a pop can, but it won't come out. You have a "null" face as you look like a "chup", or a shmuck, trying to get the last drop out. Origin "chup-null-gator", someone trying to get the last drop of gatorade, but instead got a chup-null.
by Chup-Null-Gator February 22, 2008
Get the chup-nullmug. by BlueFladoo August 11, 2006
Get the Chupa Chupmug. Newzealander: Hey cuzzin wanna go to tha shups for sum fish and chups?
Normal person: Can you speak properley?
Normal person: Can you speak properley?
by Xhamsterlover March 6, 2012
Get the Fish and chupsmug. 
Get the fupa chupmug. Used to describe an individual, sometimes a little buddy, sometimes slightly derogatory. Similar to if you called someone cheif, sport or pal. Can also be used in place of dude.
What's up Chupa Chup?
Johnny: Is Chris coming with us?
Brian: I don't know, I haven't talked to Chupa Chup.
Johnny: Is Chris coming with us?
Brian: I don't know, I haven't talked to Chupa Chup.
by Grayson March 23, 2005
Get the Chupa Chupmug. by chonk we May 29, 2021
Get the Chupa Chupmug. by bike.tchotch February 8, 2007
Get the chup downmug.