Definitions

1. interjection

an expression of surprise or astonishment, similar to ‘good heavens’ or ‘good grief’

“He swore ‘strewth’ when he saw the surprise party.”

2. noun

a mild oath or expletive

“The young boy used ‘strewth’ instead of a stronger curse.”

3. adverb

used to emphasize or intensify an expression

“He’s as fit as strewth to run the marathon.”