請問"嘥"呢個字係唔係中文字

是！

其實你要判斷佢係唔係一個中文字，
十分簡單，
你只要嘗試在電腦中打唔打倒出尼，
或是字典有冇，
只要符合其一條件，
便是了！

你現在打倒了，
便OK啦！

HOPE I CAN HELP YOU ^_^

http://www.cantonese.sheik.co.uk/dictionary/characters/893/?full=true
嘥-This character is used in Cantonese, not Mandarin/Standard written Chinese. 粵
[1] [v] waste; squander; ruin
[2] [adj] wasteful; extravagant
[3] [v] miss; let go; lose (a chance)
[4] [v] debase; vilify; taunt (sb)

2014-12-31 11:29:30 補充：
嘥電 = waste of electricity
嘥氣 = waste of breath or energy
嘥時間 = to waste time
嘥錢 = to waste money
嘥口水 = waste saliva trying to convince or persuade some body
大嘥 = wasteful
嘥心機,挨眼瞓 = to rack one's brain for nothing

一般中文字典不會收「嘥」這個字﹐因為它是為了廣東話而創造出來的字。若果你用網上最大型的中文字典漢典就可以查到 http://www.zdic.net/z/17/js/5625.htm

另外「嘥」的正字是「㩄」。意思是散失。請參考 http://www.zdic.net/z/f/js/3A44.htm

"嘥"呢個字係中文字

係，呢個係廣東自創文字，同大陸簡體字，日文漢字都係自創文字。