Extralinguistic Trills
A linguolabial trill is not known to be used phonemically, but occurs when blowing a raspberry.
Snoring typically consists of vibration of the uvula and the soft palate (velum). While the former part is simply a uvular trill, there is no standard linguistic term for the latter. It does not constitute a velar trill, because the velum is here the active articulator, not the passive; the tongue is not involved at all. (The Extensions to the IPA identify a fricative pronounced with this same configuration as velopharyngeal.)
Lateral trills are also possible and may be used to imitate bird calls.
Read more about this topic: Trill Consonant