94 Caravan Starter "****m"?

Hello...I am still having the same problem with my Caravan as a month
or two ago..You turn the key and solenoid clicks but that`s
all..Usually after 5-20 times it will start..We`ve gone down the list
and checked all the normal stuff and nothing has fixed it (Battery,
ground, starter motor, relay..etc)..Today some guy at the 7-11 said he
had the problem once and the starter motor needed to be
"****mmed"..I`ve never heard of this..Any input will be appreciated