all capsnoun [ plural ]
also all-caps /ˌɔːlˈkæps//ˌɑːlˈkæps/capital letters (= letters of the alphabet in the form and larger size that is used at the beginning of sentences and names), used especially in order to emphasize something or show that you are angry:
Using all caps is considered yelling online.
all capsadjective
also all-caps /ˌɔːlˈkæps//ˌɑːlˈkæps/written in capital letters (= letters of the alphabet in the form and larger size that is used at the beginning of sentences and names), especially in order to emphasize something or show that you are angry about something:
She keeps getting shouty, all-caps emails from her boss.