2 definitions by The-Sentinel

Hairy faced beast typically known to send nudes to unsuspecting young girls, he uses his immensely large penis to attract both male and females through popular social media sites through "stories" and other methods, Gruffalo's are rare however one male in every friendship group is said to have one. There is major speculation that there is only one true Gruffalo amongst the men of this planet.
Chrissy: I received a very strange snapchat the other night, i think the guy was a Gruffalo as his penis was very large and intimidating, but surely there is only one Gruffalo....have i found him?

Billy: Slow the boat, thats a big cock, leave me be im only eleven! I think i just saw a Gruffalo

Jamie: i look into the mirror each night and wonder, why has God given me the gift of such a large wang, am i the Gruffalo....?
by The-Sentinel June 14, 2017
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Type of instrument that is used to measure the semen that a man produces while he is casting for a pornographic video.
Johhny used a Billyboat to measure the amount of semen he could produce, before being able to take part in the "close up facial" pornographic video.
by The-Sentinel June 14, 2017
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