She couldn't help but fleer at his clumsy attempts.
fleer with
Frequency:
50
%
He would often fleer with his friends during class.
fleer in
Frequency:
40
%
The children would fleer in amusement at the clown's antics.
Idiomatic Expressions for fleer
Phrase: fleer in triumph
Meaning: to smile or laugh in a mocking or arrogant way after achieving victory
Usage: After winning the championship, he couldn't help but fleer in triumph at his defeated opponents.