He had an itchy palm and couldn't resist scratching it.
open palm
Frequency:
60
%
He extended his open palm, offering help to those in need.
greedy palm
Frequency:
45
%
She had a greedy palm and always wanted more than she had.
empty palm
Frequency:
40
%
She held out her empty palm, hoping for a donation.
Idiomatic Expressions for itching palm
Phrase: Grease someone's itching palm
Meaning: To bribe or give money to someone in order to gain favor or influence
Usage: The corrupt official was known for accepting bribes to grease people's itching palms.