Boston tug boat 

when ur girl is suckin you off and just before you blow ur load in her mouth... she bites bown just enough to make it hurt but not bleed, then pulls back hence the name "tug boat"

dude i think i pissed my girl off the other day... we were foolin around and she gave me the boston tug boat

Boston tug boat by C-Dubz May 15, 2006

Big Boat Jizzy 

The stuff that spurts from the cock of sailors on large racing yachts

I gave that slut a load of big boat jizzy last night
Your a wanker that's full of big boat jizzy

Big Boat Jizzy by Ralphy Suttle June 10, 2003

on the boat 

A state in which a man and a woman are seeing each other regularly, but are not currently dating.

Person 1: Are Laura and Perry togetha yet?
Person 2: Na bra they on the boat.
Person 1: Dang son.

on the boat by Double_Dees January 5, 2008

Straight boating on a boat

When one gets extremely drunk or wasted.

"man I'm straight boating on a boat right now"
"last night I was straight boating on a boat"

Straight boating on a boat by Mr. Poundtown July 8, 2009

PENIAL BOAT 

When there is a boat purely dedicated for filming porno.

Dude is that a penial boat????

PENIAL BOAT by PU$$YDERTROYER69696969 October 23, 2013

Underground Boat Ride 

To motorboat another person's asshole.

She was a real dirty girl. She wanted me to give her an underground boat ride

Underground Boat Ride by Cinderblock September 21, 2014

Speed Boat-ing

1. To procrastinate to the point of avoiding the thing completely
2. To do a job so badly nobody wants it, anyway.

Boss: What is this shit?
Employee: I was Speed Boat-ing...
Boss: You're fired!!!

Speed Boat-ing by Lucille Tercio July 1, 2016