Typobonics is considered by some to be lazy and low-class.
Not to be confused with l33t, which is common with internet nerds, or the condensed written english associated with text messaging, which is shortened out of necessity of the nature of a text message.
Some typical typobonic word subsitutions are:
'cuz' instead of 'because'
'plz' instead of 'please'
'luv' instead of 'love'
'neva' instead of 'never'
'n' instead of 'and'
'da' instead of 'the'
"u neva gunna looz weight cuz u always chattin on da internet."