- HIPTO
- Cognizant of
- Clued in about
- Aware of
- Not ignorant of
- Familiar with
- Catching the vibe of
- Conscious of, slangily
- Not in the dark about
- Digging, in a sense
- Informed about
- Well aware of
- In the know about
- In on, slangily
- Aware of, so to speak
- Aware of, informally
- Up on
- In on
- Knowing what's what about
- Savvy about
- Conscious of
- Knowledgeable about
- Huey Lewis and the News tune, "___ Be Square"
- Knowledgeable about, old-school
- Aware of, "Right on"
- Aware of, to cool cats
- Aware of, in '60s slang
- ___ Be Square (Huey Lewis and the News)
- Cognizant of, slangily
