Verb
have a bite (third-person singular simple present has a bite, present participle having a bite, simple past and past participle had a bite)
(idiomatic) To eat a quick, light snack.
Well, sometimes if I go out to dinner with my family, people will come up to me and put their hand across my plate for me to shake, sometimes when I have a bite of food in my mouth. I find this a bit disturbing. Abdul Qadeer Khan
I like spending time at home. In Paris, people drop by and have a bite to eat, or they drop by and watch Friends on TV. I take my dog to the office there, and I walk to work sometimes. Marc Jacobs