Noun
One who, or that which, tickles.
Something puzzling or difficult.
A book containing a memorandum of notes and debts arranged in the order of their maturity.
A prong used by coopers to extract bungs from casks.
Source: Webster's dictionaryLet me arrive safely back at my hotel room. Don't let me be attacked by a maniac wearing a french tickler and a space helmet. Don't let my beard become entangled in the gears of a transcontinental bus. And don't let me be hit by a flying turd. George Carlin
Classic British motorcycles, with side-draft slide-throttle carburetors, used another type of "cold start device", called a "tickler". Source: Internet
If the "tickler" is held down too long it also floods the outside of the carburetor and the crankcase below, and is therefore a fire hazard. Source: Internet
This rod is usually attached perpendicular to a rear-facing lever called a trigger or "tickler". Source: Internet