  A microphysics-agnostic meta-model of rotational glitches in rotation-powered
pulsars is developed, wherein the globally averaged internal stress accumulates
as a Brownian process between glitches, and a glitch is triggered once a
critical threshold is surmounted. Precise, falsifiable predictions are made
regarding long-term event statistics in individual pulsars. For example, the
Spearman cross-correlation coefficient between the size of a glitch and the
waiting time until the next glitch should exceed 0.25 in all pulsars. Among the
six pulsars with the most recorded glitches, PSR J0537$-$6910 and PSR
J0835$-$4510 are consistent with the predictions of the meta-model, while PSR
J1740$-$3015 and PSR J0631$+$1036 are not. PSR J0534$+$2200 and PSR
J1341$-$6220 are only consistent with the meta-model, if there exists an
undetected population of small glitches with small waiting times, which we do
not resolve. The results are compared with a state-dependent Poisson process,
another microphysics-agnostic meta-model in the literature. The results are
also applied briefly to recent pulse-to-pulse observations of PSRJ0835$-$4510,
which appear to reveal evidence for a negative fluctuation in rotation
frequency just prior to the 2016 glitch.
