joggle

Verb

• To shake slightly; to push suddenly but slightly, so as to cause to shake or totter; to jostle; to jog.
• To shake or totter; to slip out of place.
• To jog or run while juggling.
• To join by means of joggles, so as to prevent sliding apart; sometimes, loosely, to dowel.

Noun

• A step formed in material by two adjacent reverse bends.
• A notch or tooth in the joining surface of any piece of building material to prevent slipping.