掌心雷

一種尺寸細嘅自衞#手槍，可以收喺手掌度 (derringer; palm pistol; literally: thunder in palm)

部份政治團體操縱年老#選民#投票 嘅一種手法：將候選人編號寫或貼喺長者手掌度，提醒佢哋投邊個 (arrangement of some political groups during elections, by writing or affixing stickers with their candidates' numbers on senior voters' palms as a reminder, so as to manipulate these votes)

derringer

a type of electoral fraud where palm-sized paper are given to potential and susceptible voters before voting; granny farming