Ultimately - every fella on TikTok? Jerk! (4)

I believe the answer is:

yank

'jerk' is the definition.
(I know that jerk can be written as yank)

'ultimately every fella on tiktok?' is the wordplay.
'ultimately' suggests the final letters.
The last letters of 'every fella on tiktok' are 'YANK'.

(Other definitions for yank that I've seen before include "American - jerk" , "Sharp movement" , "American native" , "Pull roughly" , "one seen crossing the Atlantic?" .)

I've seen this clue in The Irish Times.

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