be laughing up sleeve

be laughing up your sleeve

to laugh at someone secretly, often in an unkind way (often + at ) He persuaded people to believe in him and all the time he was laughing up his sleeve at them.

Common Names:

Name	Pronounced	Usage
Ophiuchus	-	Astronomy
Susie	SOO-zee	English
Chiemeka	-	Western African, Igbo
Lillie	LIL-ee	English
Franziska	frahn-TSIS-kah	German
Edmond	['edmand]