In a way that is excessive or too much.
This word can make people think of doing something too often or too strongly.
Examples:
He ate the cake overmanner and got a tummy ache.
She cried overmanner when she lost her toy.
The dog barked overmanner at the mailman.
I laughed overmanner at the silly joke.
The cat slept overmanner and missed dinner.
The baby giggled overmanner at the funny face.