A portmanteau of the nouns 'upvote' and 'boat', usually used to express the desire for large numbers of upvotes.
Example 1: "upboats 4 shurlok"
Translation: I desire large numbers of upvotes for my post concerning Sherlock Holmes
Example 2:"am i late for the upboats?"
Translation: This phrase 'upboat' confuses me and I wish to join the trend
N.B. If you have to ask, you're probably already late