It's referring to how using Benadryl recreationally will make you see the Hat Man at the end of your bed
https://en.wikipedia.org/wiki/Shadow_person#The_%22Hat_Man%22
Ok, sure, but what do the giant knockers have to do with it?
Some people just have huge knockers.
It’s to make sure you see Benadryl first.
For when their taste is awful but execution is great
It's referring to how using Benadryl recreationally will make you see the Hat Man at the end of your bed
https://en.wikipedia.org/wiki/Shadow_person#The_%22Hat_Man%22
Ok, sure, but what do the giant knockers have to do with it?
Some people just have huge knockers.
It’s to make sure you see Benadryl first.