What is Cup Shake?
1.
To shake one's cup or mug at another person by holding the handle and vigorously pronating and supinating the wrist; thus indicating that it is tea time.
David and Michelle walked past Andrew's office and gave him the cup shake.
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2.
To shake one's cup or mug at another person by holding the handle and vigorously pronating and supinating the wrist; thus indicating that it is tea time.
David and Michelle walked past Andrew's office and gave him the cup shake.
See