Instanter

"They're another reason why I've got to get my girl and start instanter.

Source: wiktionary

They lifted him onto the deck where he lay in his wet seersucker suit and his lemoncolored socks, leering walleyed up at the workers with the hook in his face like some gross water homunculus taken in trolling that the light of God's day had stricken dead instanter.

Source: wiktionary

I cleared my throat & bade all good morning, at which our amicable captain swore, 'You can better my morning, by b—ing off, instanter!'

Source: wiktionary