Background: if you have a noun, the easiest way to convert it into a verb is
by gluing a する onto the end of it. Examples of this abound, ranging from old
Sino compounds to recent English borrowings.

Sometimes, a novel 五段 verb can also be constructed from a non-verb. Examples
of this include:

  * グーグル → ググる ("to Google; to search")
  * メモ → メモる ("to make a note of")
  * びっくり → びくる ("to be surprised / startled", I think)
  * サボタージュ → サボる ("to slack off; to skip")
  * 写メ【しゃメ】 → 写メる【しゃメる】 ("to take a picture with a mobile device")

Observe that all of the verbs thus formed are ラ行 verbs. Can this process
_only_ give rise to ラ行 verbs, or can it also produce other types of 五段 verbs,
e.g. カ行 or サ行?
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question
verbs
Verbing to form 五段 verbs: does it only generate ラ行 verbs?
Generally words ending in /ru/ will be reinterpreted as the consonant verb
stem /r-/ plus /u/, while verbs not ending in /ru/ will have /r-u/ added. For
some reason, even verbs which _could_ be interpreted as vowel stem verbs are
generally interpreted as consonant stem. We can make other generalizations
too, like pointing out that long vowels are generally shortened and very long
words are usually clipped before they're verbed.

However, these are just patterns, not absolute rules. People can coin non-
standard words however they like, and people like to play with language. One
_rare_ example is [a song by Perfume titled
だいじょばない](https://www.youtube.com/watch?v=PoWoWiqI3aM), which follows the
pattern of shortening long vowels but does _not_ add /r-u/. Instead, we get
the final /bu/ reinterpreted as a consonant stem /b-/ plus /u/, giving the
nonstandard verb だいじょぶ inflected to だいじょばない.

So yes, it's possible to form non-standard verbs that aren't ラ行, though people
don't do it very often. Most often, people stick to the /r-u/ pattern.
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answer