Where are you getting this from? I've never heard this and I am a native speaker. Also none of the dictionaries I have access to mention this. E.g., one says

Where are you getting this from? I've never heard this and I am a native speaker. Also none of the dictionaries I have access to mention this. E.g., one says: > likely to have a strong or far-reaching effect; radical and extreme: a drastic reduction of staffing levels.