I have a strange fondness for frequentatives, frequentative being verbs that happen frequently. So if you spark once, you spark. But if you spark frequently, you sparkle. If you crack once, you crack. But if you crack frequently you crackle. If you charge into somebody once wearing full armour and carrying a lance, you joust. If you do it all the time, you jostle. Burst, bustle. Jog, joggle. Tramp, trample. Scuff, scuffle. Prate, prattle. Wade, waddle.
One that I'd never noticed before was that if you push once then you shove, and if you push repeatedly into the earth with a spade, you shovel. It comes from the Old High German scioban.
But there is a second shove frequentative. If you shove one foot forward, and then the other and so on and so forth, you shuffle.
Which is a long way round of saying that I'll be speaking at the Shuffle Festival in East London on Sunday at 3pm about death, sex and toilets.