sometimes  „nucleus‟.  The  initial  C  is  called  the  „onset,‟  and  the  final  C  the „coda.‟ A unit called the „rhyme,‟ and consisting of the sequence peak plus coda,
is recognized by many scholars. According  to  O‟Grady  in  the  book  Contemporary  Linguistics,  all
languages  have  syllables.  The  forms  of  these  syllables  aregoverned  by  various kinds of constraints, but certain universal tendencies are observable:
1. Syllable nuclei usually consist of one vowel V
2. Syllables usually begin with onsets
3. Syllables often end with codas
4. Onsets and codas usually consist of one consonant C
As  we  see  these  tendencies,  we  find  that  the  most  common  types  of  syllables found in languages take the form CV and CVC p.78; 2010.
C. Theoretical Framework
The  contribution  of  theories  is  extremely  needed  in  order  to  answer  the problems  mentioned.  Theories  of  rhyming  slang,  sociolinguistic,  and  etymology
are  used  by  the  writer,  by  using  these  theories  we  can  get  deeper  understanding about  what  rhyming  slang  is.  The  writer  uses  theory  of  sociolinguistics  to    get
more  knowledge  about  the  cockney  rhyming  slang  toward  the  environment because  the  use  of  cockney  rhyming  slang  is  to  communicate  their  ideas  or  to
show  their  social  identities.  Through  distinctive  feature  theory,  it  is  used  to explain  that  phonological  rules  apply  to  natural  classes  of  sounds,e.g.  sounds
which share certain phonetic properties. The last is theory of syllable structure, this theory is used to help the writer to explain the words based on their syllable
and to identify their segment or their syllabic unit. Thus,  the  review  of  related  studies  is  needed  to  add  some  more
information  about  cockney  rhyming  slang.  The  review  of  related  theories  will accompany the review of related studies to give a deeper understanding about the
study. The elaboration of review of related studies and review of related theories helps the writer to find out the answer of the problems.
CHAPTER III METHODOLOGY
This chapter consists of the method that the writer will use in collecting and analyzing the data. There are three parts in this chapter. The first is the object
of the study. The second is  the approach of the study. The last is  the method of the study.
A. Object of the Study
In  this  study,  the  writer  analyzes  the  etymology  of  cockney  rhyming slang expressions as seen in A Dictionary of Cockney Rhyming Slang 2010. This
dictionary was published by Watchya.com, the site contains interesting and useful e-books, in 2010. The main point here is that this dictionary shows the uniqueness
of cockney language.  This dictionary consist of two parts; Cockney-English and English-Cockney. The strong point of this dictionary is the list of cockney phrases
from clasical cockney rhyming slang until the up to datee cockney rhyming slang which is still being used by Londoners until now.