wicked, wicket

Wicked or wicked ( two syllables ) means evil, sinful, or immoral--
"This is her sister, the wicked witch of the west, and she's worse than the other one was."
"By the pricking of my thumbs, Something wicked this way comes."

Wicket or wicket means a small door, gate, or opening, as for selling tickets or for regulating the flow of water to a mill--
He's manning a wicket, selling tickets for the rides.
When the wicket is raised, the water flows through it and starts the wheel.

Now that you know that, you can say--
"He reached through the wicket to help himself, which was most intolerably wicked of him."

Note--"wicked" ( one syllable ) is the third person singular ( he, she, it ) form of "wick", meaning to draw up liquid, as a piece of string or cloth might do--
When you left the end of the string in the glass, it wicked up most of the water.
Note # 2-- "wick it" means to draw up ( wick )  something ( it, or the liquid )--
If you put a piece of cloth in the lamp oil, it will wick it up.