What do you mean it's spelled whambourts

lets break it down

1. wh - 'h' as in 'who'
2. a - 'oh' as in 'watch'
3. mb - 'm' as in 'thumb'
4. our - 'uh' as in 'armour'
5. ts - 's' as in 'tsunami'

English is such a great language.