An "obvious pun" is a type of joke that uses similar-sounding words or phrases to create humor. It is usually easy to understand because the connection between the words is clear and straightforward. Full definition
(We're sorry, we can't help ourselves when there are so many obvious puns to make.) (geekwrapped.com)
This film isn't as iconic as, say, Duck Soup, but it still contains its share of obvious puns and madcap antics. (filmcrave.com)
And so when it turns out that «The Second Best Exotic Marigold Hotel» is, in fact, a lesser follow - up to its surprise 2012 hit predecessor, it tests one's sense of restraint not to go right for the obvious puns. (latimes.com)