2 definitions by Defanonamous
Noun. A person or thing that is being flakey. They make plans and frequently cancel last minute. A person or thing whose existence or friend status you are now questioning because they keep canceling.
You're being a shamoop! Hey shamoop are you going to cancel on us again? What a shamoop he/she bailed again!
by Defanonamous January 10, 2017
Adverb. When someone/something is being flakey. When someone/something is frequently canceling or bailing on plans.
Claire is being so shamoopy she bailed again! Tom has been so shamoopy this month this is the 9th time he has canceled.
by Defanonamous January 10, 2017