[Pete]

Touring cam. A cam with a personality that desires to be around other engines with touring cams.
RV cam. (Recreational vehicle) All cams in street driven antique vehicles are recreational.
3/4 cam. One that goes 3/4 of a mile before the engine blows.
Semi cam. One that is only half finished.
Stump puller cam. Obvious.

All terms generally associated with a cam regrind to mean more low rpm range torque (Off idle to 2500 rpm) and better fuel mileage.

To get slightly technical, this is accomplished by:
1 - Increasing lift velocity. (Most important)
2 - Slightly increasing lift.
3 - Decreasing duration.
4 - Decreasing overlap.

There are several other parameters involved also and all of them interact so cam design gets VERY complicated and is usually left to people with pointed hats that stir big iron cauldron's at midnight.