blicker · verb1
From dialectal *blick (Middle English bliken) + -er (frequentative), undoubtedly influenced by flicker.
blicker · noun2
From clicker, with the initial "C" replaced with "B" in Blood slang.
Etymology from Wiktionary, CC BY-SA 4.0.
blicker
Today it means: To flicker, to shine or reflect light intermittently. Full definition →