Wiktionary
boatie
n. 1 (context childish or endearing English) A boat. 2 A boater (gloss: someone who travels by boat)
Usage examples of "boatie".
We can send Innes back wi' John's boatie, and he can take a message to Fergus to come and join us.
And I am almost certain I recognized him in the Strada Reale today, walking about as though he were at home, while you were in your boatie.