This is a phrase used by Berserk fans to mock the
poor english pronunciation of the 1997 Berserk opening "Tell Me Why" by Penpals. The original line is "put your glasses on", but the pronunciation is so horrible that it sounds like "grasses". This phrase is used to joke on the unexpectedness and betrayal of The Eclipse, the horrible animation of the Berserk
2016/
2017 anime or a way to
say someone is very narrow minded, oblivious, have bad taste or did something horrible since "they forgot to put their grasses on". There are many alterations available for this phrase: "(if only) they put their grasses on", "put your grasses on", "(he/she should've) put (his/her) grasses on", "(I should've) put (my) grasses on" . Along many more possible phrasings. This can also be used to mock
people who spend too much time in there rooms as it is an extension of the
joke "touch grass".
" If only Griffith remembered to put his grasses on, nothing would'
ve been wrong".
"If only the Berserk
2016 animators remembered to put their grasses on"
"I should've remembered to put my grasses on before reading the Eclipse"
Talking about Berserk fan animation : "This is what the Berserk 2016
anime would looked like if I put my grasses on"
"That kid actually likes Berserk 2016, he should put his grasses on."
"Put your grasses on and stop watching the Berserk 2016/2017
anime"