fool with
phrasal verb
fooled with;
fooling with;
fools with
Definition of fool with
informal
1
: to handle or play with (something) in a careless way
Don't fool with that gun.
2
: to deal with or be involved with (something that causes or that could cause trouble)
The company doesn't want to fool with small distributors.
3
: to deal with (someone) in a way that may cause anger or violence
I wouldn't want to fool with that guy.