WHAT DOES HOFFMEISTER WIKIPEDIA MEAN?

[86] In dread that the town of giants would want vengeance on David for killing town's champion (Goliath) and all kinds of other Philistines, David pretended being crazy. When he pretended to acquire insanity he made marks on the city's gate and let saliva drool into his beard.[87] Achish was repulsed by David's supposed sanity and so he experience