This is the 8785th most frequent Dutch word.
jaknikkende
"Jaknikkende" means "nodding" in English.
Here 'jaknikkende' functions as an adjective describing the person who is characterized by frequently nodding as a sign of agreement.
De jaknikkende persoon stemde met alles in zonder veel na te denken.
The nodding person agreed with everything without much thought.
'Jaknikkend' serves as a present participle in this context, denoting the act of nodding in agreement, even if uncertain.
Hij stond jaknikkend bij het voorstel, hoewel hij twijfels had.
He stood nodding at the proposal, although he had doubts.
In this usage, 'jaknikkende' describes 'beweging' as an adjective, referring to the action that involves nodding.