To encourage opponents into betting more by first refraining from betting while having a strong hand, and only later raising the stakes. In informal games, certain types of sandbagging are forbidden.

To slow play a very strong poker hand in the hope that other poker players will believe you have a relatively weak poker hand.

Playing a strong hand as if it were only a fair one.

Sandbagging means concealing your strength for the purpose of increasing your profit. In poker, this usually means slowplaying in the early betting rounds in order to extract more profit on the later rounds. Especially when called "sandbagging," this practice sometimes has the negative connotation -- usually among occasional or less serious players -- of being a hostile or marginally unethical way to play. Experienced players regard it as just another part of the game, a vital strategic tool. The same is true for check-raising, which bears some resemblance to slowplaying.

route who's grade hides its difficulty This could be because its undergraded or that it needs a trick move to beat the crux.

To underrate the difficulty of a climb in an effort to either appear cool and confident or to gull others into attempting the route.

The name given to a climb that is significantly more difficult than it's grade suggests.

A bag with sand in it. Attached to the Harness of a light climber to prevent them going airborne when belaying much heavier partners. An under graded Route. Known locally as a "Martyn".

A bag filled with sand; small sandbags may be used as a weapon, or larger ones to build walls or as ballast; as, they kept the flooding river from the area by buiding a temmporary dike out of sandbags.

A fabric bag that can be filled with sand and used for weighing down scenery supports. In rope rigging systems, a larger sandbag can be attached to the trim clamp to counterbalance the load hung from the set.

A fabric bag that can be filled with sand and attached to rope rigging as a counterbalance to the load hung from the set.

A canvas container filled with sand and used for force protection or pretection from rising flood waters. SD-STD-02.01 U.S. Department of State Specification for Vehicle Crash Test of Perimeter Barriers and Gates.

To deceive and take advantage of (a person) by misrepresenting one's true intentions.

downplay one's ability (towards others) in a game in order to deceive, as in gambling

a) To misrepresent your skill b) To enter a tournament in a division below your skill level

To hold back on a car's performance, during qualifying, to mislead other drivers as to its potential.

To conceal a car's potential by deliberately under-performing during qualifying.

When a driver holds back a car's performance, usually during qualifying or early in a long race, to hide a car's true potential.