
1) ABC followers 2) Alphabetic trio 3) Bit of OED info 4) Cellular 3 5) Cool in slang 6) Cool, modern-style 7) Cool, to rappers 8) Cool, to the fresh prince 9) Dialing letters 10) Dialing trio 11) Excellent 12) Excellent, to a hip-hopper 13) Excellent, to homeys 14) Great, to a rapper 15) Hip-hop adjective
Found on
https://www.crosswordclues.com/clue/def

1) Mil
Found on
https://www.crosswordclues.com/clue/def

Excellent (derived from definite and death).
Found on
http://www.at149st.com/glossary.html

This is a Middle Eastern frame drum which looks like a large tambourine.
Found on
http://www.bellaonline.com/articles/art8219.asp

Defense
Found on
http://www.chatslang.com/terms/online_gaming

<abbreviation> Decayed, extracted, and filled tooth. ... See: def caries index. ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973

decayed/extraction/filled; see DEF rate.
Found on
http://www.encyclo.co.uk/local/21001

Definitely
Found on
http://www.encyclo.co.uk/local/21662
[Naval Acronyms and Slang] Defence
Found on
http://www.encyclo.co.uk/local/21733

Desktop Functional Equivalent [Compaq]
Found on
http://www.encyclo.co.uk/visitor-contributions.php

Really good, (derived from 'death'). In its day it had as much use in the hip-hop scene as in the graffiti scene. Not in use as much anymore, in some circles its use is considered downright cheesy. I'm all for bringing it back.
Found on
http://www.graffiti.org/faq/graffiti.glossary.html

Type: Abbreviation Definitions: 1. Abbreviation for decayed, extracted, or filled (permanent teeth).
Found on
http://www.medilexicon.com/medicaldictionary.php?t=23138

Type: Abbreviation Pronunciation: def Definitions: 1. Abbreviation for decayed, extracted, or filled (deciduous teeth). See: def caries index
Found on
http://www.medilexicon.com/medicaldictionary.php?t=23139

definitely
Found on
http://www.noslang.com/dictionary/d/

Def is hip-hop slang for very good, excellent.
Found on
http://www.probertencyclopaedia.com/browse/ZD.HTM

Defines a function or method
Found on
http://www.pythonforbeginners.com/cheatsheet/python-glossary

definitely: Going to Europe this summer? But def!
Found on
https://www.infoplease.com/dictionary/def
No exact match found.