What does 拼命连比带画 mean?
比 = gesture


画 = draw


比画 = gesture (with hand)

Please see 連 verb A 带 verb B

连A带B indicates 'also' or 'both'.


verb A and verb B happen at the same time or alternately.


noun A and noun B are both the objects


Emphasis is on 'about equal in importance'

Using [連 verb A 带 verb B] create mostly idiomatic phrases when the verbs are related
Example:
哄骗 --&gt; 連哄带骗
滚爬 --&gt; 連滚带爬
比画 --&gt; 连比带画 (Here we just break the compound verb 比画 into two individual verbs to emphasize them both and make it idiomatic.)
哄 and 骗 at the same time is 哄骗
比 and 画 at the same time is 比画
拼命 means 'desperately; earnestly'
拼命连比带画 = desperately gesturing