I don't know why you're asking Rob, he doesn't know the first thing about classical music.
New idioms dictionary. 2014.
not know the first thing about something — not know the first thing about (something) to know nothing about something. I don t know why you re asking Alice, she doesn t know the first thing about sports … New idioms dictionary
not know the first thing about something — (not) know the first thing about (something) to not know anything about a particular subject. I don t know why you re asking Rob, he doesn t know the first thing about classical music … New idioms dictionary
not know the first thing about something — not know the first thing/not have the first idea/about something phrase to not know anything about a subject or not have the skills to do something He doesn’t know the first thing about literature. Thesaurus: to not know something or… … Useful english dictionary
know the first thing about — (not) know the first thing about (something) to not know anything about a particular subject. I don t know why you re asking Rob, he doesn t know the first thing about classical music … New idioms dictionary
know the first thing about smth — lack basic knowledge about something He doesn t know the first thing about computers … Idioms and examples
not know the first thing about — (something) to know nothing about something. I don t know why you re asking Alice, she doesn t know the first thing about sports … New idioms dictionary
not know the first thing about — (not) know the first thing about (something) to not know anything about a particular subject. I don t know why you re asking Rob, he doesn t know the first thing about classical music … New idioms dictionary
not know the first thing about — To know nothing about • • • Main Entry: ↑first * * * have not the slightest idea about (something) * * * not know the first thing about : to have little or no knowledge about (something or someone) I don t know the first thing about… … Useful english dictionary
not know the first thing about smth — lack basic knowledge about something He doesn t know the first thing about computers … Idioms and examples
not have the first idea about something — not know the first thing/not have the first idea/about something phrase to not know anything about a subject or not have the skills to do something He doesn’t know the first thing about literature. Thesaurus: to not know something or… … Useful english dictionary
