|Velar lateral tap|
The velar lateral tap is an allophone of the velar lateral approximant in some languages of New Guinea, such as Kanite and Melpa. The extremely short duration of the [?] in intervocalic position (20-30 ms) warrants calling it a tap, according to Ladfoged & Maddieson (1996).
There is no specific symbol for this sound. However, an IPA capital L with a breve for extra-short, , would capture Ladefoged and Maddieson's description.