noun a word that represents a person, place, thing, or idea, 'hilaribad' could potentially be used as a noun to refer to something that is both hilarious and bad
adjective a word that describes or modifies a noun or pronoun, in this case, 'hilaribad' is likely a made-up word combining 'hilarious' and 'bad' to convey a mixed or conflicting feeling
noun a prank or internet meme involving the unexpected appearance of the music video for Rick Astley's song 'Never Gonna Give You Up'
verb to trick someone into watching the music video for Rick Astley's song 'Never Gonna Give You Up' as a prank