80
The pirate says, "Aye, aye!" The French says, "Oui, oui!"
To the water, it is time! Or in french... ... BWA HA HA HA. OK... I know this is kind a dad joke but.... yeah (for those don't speak French and thus don't get this, click the link and click the speaker to have it read to you ;) )
Because they'll reach 420 before anyone else. Explanation: 80 is quatre-vingt in french and quatre=4 and vingt= 20.
420
420 gaze it. Geddit. Because then you'd be stoned Okay, sorry I'll leave.