Here's my basis, my razor embraces, many faces

from Nas – Memory Lane (Sittin' in Da Park) Lyrics on Rap Genius

Meaning

There are two ways you could look at this:

1. Nas loans his shaving apparel out to a lot of people, which has got to be unsanitary

2. Nas has cut a lot of people’s throats, which would also be quite unsanitary

Either way, remember to dip that shit in barbicide, Esco!

There’s also some surreal imagery/metaphor here. An embrace is something done by humans so for a razor to do that is Nas explaining how deadly his blade is.

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