Green’s Dictionary of Slang

huss v.

(UK Und.) to grope sexually.

[UK]Swell’s Night Guide 122/2: Hussing, feeling, grope a woman in a crowd.

In derivatives

hussington (n.)

(UK Und.) an impotent old man, reducing to groping women rather than achieving intercourse.

[UK]Swell’s Night Guide 122/2: Hussington, an old fellow who can only feel and grope.